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Multimedia TechnologySolved Questions· Unit 3
Computer Science · Chapter 03
76 solved questions

Multimedia Technology

Every question in this chapter, answered and explained — step-by-step solutions drawn live from the chapter library across 7 question sections.

Textbook-Based Content: Multiple Choice Questions15Textbook-Based Content: Write the Full Form13Textbook-Based Content: Write the Tech Terms15Textbook-Based Content: Descriptive Questions (Brief)14Textbook-Based Content: Descriptive Questions (Comprehensive)12Textbook-Based Content: Application-Based Questions5Textbook-Based Content: Case Study-Based Questions2
01

Textbook-Based Content: Multiple Choice Questions

15
1Textbookcs1-q1

Which of the following is NOT a component of multimedia? a) Text b) Image c) Database d) Audio

Ans.c) Database
2Textbookcs1-q2

Which component of multimedia includes sound effects, music, and spoken words? a) Video b) Graphics c) Audio d) Image

Ans.c) Audio
3Textbookcs1-q3

Which graphics type can be resized without losing quality? a) Raster Graphics b) Vector Graphics c) Animated Graphics d) Compressed Graphics

Ans.b) Vector Graphics
4Textbookcs1-q4

Which of the following is a video file format? a) WAV b) MOV c) PNG d) GIF

Ans.b) MOV
5Textbookcs1-q5

Which image format uses lossless compression? a) JPG b) MP3 c) PNG d) AVI

Ans.c) PNG
6Textbookcs1-q6

Which type of animation is made using flat images that move on a flat surface? a) 3D Animation b) Vector Animation c) 2D Animation d) Frame Animation

Ans.c) 2D Animation
7Textbookcs1-q7

Which file format is most suitable for high-quality printable documents containing both text and images? a) PDF b) MP4 c) MP3 d) GIF

Ans.a) PDF
8Textbookcs1-q8

Which of the following is an audio file format? a) AAC b) JPG c) MOV d) SVG

Ans.a) AAC
9Textbookcs1-q9

In a video, how is frame rate measured? a) Pixels per inch b) Frames per second c) Bytes per frame d) Sounds per second

Ans.b) Frames per second
10Textbookcs1-q10

Which of these video resolutions provides sharper and clearer images? a) SD b) HD c) GIF d) WAV

Ans.b) HD
11Textbookcs1-q11

Which type of graphic is made up of tiny colored squares? a) Vector Graphics b) Raster Graphics c) Animated Graphics d) Digital Graphics

Ans.b) Raster Graphics
12Textbookcs1-q12

Which of these is commonly used in professional music recording? a) MP3 b) AAC c) WAV d) MOV

Ans.c) WAV
13Textbookcs1-q13

Which image format supports simple animations? a) JPG b) GIF c) PNG d) SVG

Ans.b) GIF
14Textbookcs1-q14

Which multimedia element helps explain ideas using visual elements like charts and diagrams? a) Animation b) Graphics c) Audio d) Text

Ans.b) Graphics
15Textbookcs1-q15

Which file format is specially designed for web use and allows scaling without quality loss? a) SVG b) MOV c) AVI d) MP3

Ans.a) SVG
02

Textbook-Based Content: Write the Full Form

13
1Textbookcs2-q1

Write the full form of MP3.

Ans.MPEG Audio Layer 3
2Textbookcs2-q2

Write the full form of AAC.

Ans.Advanced Audio Coding
3Textbookcs2-q3

Write the full form of WAV.

Ans.Waveform Audio File
4Textbookcs2-q4

Write the full form of SD.

Ans.Standard Definition
5Textbookcs2-q5

Write the full form of HD.

Ans.High Definition
6Textbookcs2-q6

Write the full form of PNG.

Ans.Portable Network Graphics
7Textbookcs2-q7

Write the full form of GIF.

Ans.Graphics Interchange Format
8Textbookcs2-q8

Write the full form of JPEG.

Ans.Joint Photographic Experts Group
9Textbookcs2-q9

Write the full form of SVG.

Ans.Scalable Vector Graphics
10Textbookcs2-q10

Write the full form of PDF.

Ans.Portable Document Format
11Textbookcs2-q11

Write the full form of MOV.

Ans.Apple QuickTime Movie
12Textbookcs2-q12

Write the full form of AVI.

Ans.Audio Video Interleave
13Textbookcs2-q13

Write the full form of fps.

Ans.Frames Per Second
03

Textbook-Based Content: Write the Tech Terms

15
1Textbookcs3-q1

A technology that combines text, images, audio, video, and graphics to present information interactively.

Ans.Multimedia (Multimedia Technology)
2Textbookcs3-q2

The most basic and common multimedia component used to display written words, numbers, and symbols.

Ans.Text
3Textbookcs3-q3

Images made using mathematical formulas, lines, and shapes that do not lose quality when resized.

Ans.Vector Graphics
4Textbookcs3-q4

Digital images made up of tiny colored squares called pixels that lose clarity when enlarged.

Ans.Raster Graphics
5Textbookcs3-q5

The unit used to measure the number of frames shown per second in a video.

Ans.Frames Per Second (fps)
6Textbookcs3-q6

A video resolution with fewer pixels and lower image clarity, suitable for small screens.

Ans.SD (Standard Definition)
7Textbookcs3-q7

A video resolution with more pixels and sharper, clearer images, used in modern devices.

Ans.HD (High Definition)
8Textbookcs3-q8

A type of image file format that uses lossless compression and supports transparent backgrounds.

Ans.PNG
9Textbookcs3-q9

A visual representation of sound waves showing how volume and pitch change over time.

Ans.Audio Waveform
10Textbookcs3-q10

A compressed audio file format commonly used for music and recordings online.

Ans.MP3
11Textbookcs3-q11

A video file format often used for professional video editing, developed by Apple.

Ans.MOV
12Textbookcs3-q12

Animation created in two-dimensional space using flat images.

Ans.2D Animation
13Textbookcs3-q13

Animation created in three-dimensional space where objects have height, width, and depth.

Ans.3D Animation
14Textbookcs3-q14

An image file format that supports simple animations and up to 256 colors.

Ans.GIF
15Textbookcs3-q15

A file format used to store text and images in a printable and easy-to-share document format.

Ans.PDF
04

Textbook-Based Content: Descriptive Questions (Brief)

14
1Textbookcs4-q1

What is multimedia?

Ans.Multimedia is a modern technology that combines different types of media such as text, images, audio, video, animations, and graphics into a single interactive system, allowing information to be stored, created, edited, and communicated in an interesting and meaningful way.
2Textbookcs4-q2

Write any two uses of multimedia.

Ans.Multimedia is used in education (interactive learning apps and online classes) and entertainment (movies, games, and animated videos).
3Textbookcs4-q3

What are multimedia components?

Ans.Multimedia components are the different types of media elements that make up multimedia content: text, image, audio, video, animation, and graphics.
4Textbookcs4-q4

Name any two image file formats mentioned in your document.

Ans.PNG and JPG (JPEG) are two image file formats. (GIF, SVG, and PDF are also valid.)
5Textbookcs4-q5

Name any two audio file formats mentioned in your document.

Ans.MP3 and WAV are two audio file formats. (AAC is also valid.)
6Textbookcs4-q6

What is video frame rate?

Ans.Video frame rate is the number of individual images (frames) shown in one second of a video, measured in frames per second (fps); a higher frame rate gives smoother motion.
7Textbookcs4-q7

Name the video resolution that provides clearer and sharper images.

Ans.HD (High Definition) provides clearer and sharper images.
8Textbookcs4-q8

Name any two video file formats.

Ans.MP4 and MOV are two video file formats. (AVI is also valid.)
9Textbookcs4-q9

What is animation?

Ans.Animation is a technique of creating moving images or objects by displaying a series of pictures or frames quickly, one after another, giving the illusion of continuous motion.
10Textbookcs4-q10

What is 2D animation?

Ans.2D animation creates motion in a two-dimensional space where objects have only height and width, made using flat images or drawings that move on a flat surface without depth.
11Textbookcs4-q11

What is 3D animation?

Ans.3D animation creates motion in a three-dimensional space where objects have height, width, and depth, making characters and objects look realistic since their shape can be seen from all sides.
12Textbookcs4-q12

Name the image file format that supports simple animations.

Ans.GIF (Graphics Interchange Format) supports simple animations.
13Textbookcs4-q13

Which video resolution is suitable for small screens and older devices?

Ans.SD (Standard Definition) is suitable for small screens and older devices.
14Textbookcs4-q14

Write any two features of raster graphics.

Ans.Raster graphics are made up of tiny colored squares called pixels, and they can become blurry when zoomed in or enlarged because the pixels stretch and become visible.
05

Textbook-Based Content: Descriptive Questions (Comprehensive)

12
1Textbookcs5-q1

What are the main components of multimedia technology? Explain any four components in detail.

Ans.The main components of multimedia are text, image, audio, video, animation, and graphics. Four of them explained: (i) Text is the most basic component, including written words, letters, numbers, and symbols used to provide information and instructions. (ii) Image consists of pictures, drawings, or photographs that help explain ideas or decorate content. (iii) Audio includes sound effects, music, and spoken words that make content lively and clear. (iv) Video shows moving images combined with sound, displaying actions, events, or stories.
2Textbookcs5-q2

Define raster graphics and vector graphics. Write any two differences between them.

Ans.Raster graphics are digital images made up of tiny colored pixels, mostly used for photographs and detailed artwork. Vector graphics are images made using mathematical formulas, lines, shapes, and curves, mostly used for logos and icons. Differences: (i) Raster graphics become blurry when enlarged, while vector graphics stay sharp at any size. (ii) Raster graphics are pixel-based (e.g., JPG, PNG), while vector graphics are formula-based (e.g., SVG, PDF).
3Textbookcs5-q3

Explain any three uses of multimedia technology in daily life.

Ans.
  1. (i) Education: multimedia is used in interactive learning apps, online classes, and educational videos to help students learn better.
  2. (ii) Entertainment: movies, animated videos, and games use multimedia to entertain users with visuals and sound.
  3. (iii) Advertising: advertisements combine text, images, audio, and video to attract customers and communicate messages effectively.
4Textbookcs5-q4

What is video resolution? Explain SD and HD video resolutions.

Ans.Video resolution refers to the number of pixels that make up a video image on a screen, affecting its clarity, sharpness, and quality. SD (Standard Definition) has fewer pixels (e.g., 640x480), looks less sharp on large screens, but needs less storage and internet data, suitable for small screens and older devices. HD (High Definition) has more pixels (e.g., 1280x720 or 1920x1080 Full HD), giving sharper, clearer, and more colorful video, but requires more storage space and a faster internet connection.
5Textbookcs5-q5

Define frame rate. Write any two effects of frame rate on video quality.

Ans.Frame rate is the number of individual images (frames) shown in one second of a video, measured in frames per second (fps). Effects: (i) A higher frame rate produces smoother and clearer motion. (ii) A lower frame rate can make the video look jumpy or choppy.
6Textbookcs5-q6

What is animation? Explain the differences between 2D and 3D animation.

Ans.Animation is a technique of creating moving images by displaying a series of pictures or frames quickly, giving the illusion of continuous motion. 2D animation creates motion in a two-dimensional space using flat images with only height and width, is simpler and quicker to create, and is used in cartoons like Tom and Jerry. 3D animation creates motion in a three-dimensional space where objects have height, width, and depth, looks more realistic, is more complex and time-consuming to create, and is used in movies like Frozen and Toy Story.
7Textbookcs5-q7

Which multimedia technology do you use to design a poster or banner? Give reason.

Ans.Vector graphics (using a tool that supports formats like SVG or PDF) should be used to design a poster or banner, because vector graphics can be resized to any size — from a small screen to a large printed banner — without losing sharpness or quality, unlike raster graphics which become blurry when enlarged.
8Textbookcs5-q8

What is an audio waveform? Write any two advantages of using audio waveform in multimedia.

Ans.An audio waveform is a visual representation of sound waves that shows how a sound's volume (loudness) and pitch (tone) change over time. Advantages: (i) It helps users visually identify and edit specific parts of a recording, such as cutting silence or unwanted noise. (ii) It makes it easier to mix and align multiple audio tracks accurately in music or video software.
9Textbookcs5-q9

Write any four image file formats used in multimedia technology with one feature each.

Ans.
  1. (i) PNG — supports transparent backgrounds with lossless compression.
  2. (ii) JPG/JPEG — compressed format ideal for photos with smaller file size.
  3. (iii) GIF — supports simple animation and up to 256 colors.
  4. (iv) SVG — a vector format that can be resized without losing quality.
10Textbookcs5-q10

What is the importance of video in multimedia? Write any three uses of video in multimedia applications.

Ans.Video is important in multimedia because it combines moving images with sound, making information more clear, lively, and engaging than text or still images alone. Uses: (i) In online lessons and e-learning to explain concepts visually. (ii) In presentations and advertisements to attract and inform viewers. (iii) In social media and entertainment to share stories, events, and messages.
11Textbookcs5-q11

Which image file format supports transparency? Explain with a reason.

Ans.PNG (Portable Network Graphics) supports transparency. This is because PNG uses lossless compression and includes an alpha channel that allows parts of an image to be see-through, making it ideal for logos and icons that need to be placed over different colored backgrounds.
12Textbookcs5-q12

Which image file format should be used to design a large advertising display? Explain with a reason.

Ans.SVG (a vector graphics format) should be used to design a large advertising display, because vector graphics are made using mathematical formulas rather than pixels, so they can be scaled up to any size, such as a large hoarding or banner, without becoming blurry or losing quality.
06

Textbook-Based Content: Application-Based Questions

5
1Textbookcs6-q1

Ram Sharan is preparing a digital poster for a school event. The poster has a gradient sky-colored background, and he wants to place another image on top of it without any visible background around that image. Which image file format should he use for this purpose, and why?

Ans.He should use PNG, because PNG supports transparent backgrounds through lossless compression, so the image can be placed on top of the gradient background without any unwanted white or colored box showing around it.
2Textbookcs6-q2

Anu is creating a video for online streaming that needs to load quickly, even on slow internet connections. Which video resolution should she select for this purpose, and why?

Ans.She should select SD (Standard Definition), because SD videos have fewer pixels and a smaller file size, so they require less storage space and internet data, allowing them to load and stream faster on slow connections.
3Textbookcs6-q3

Prakash is developing an animated storytelling app for children. Which type of animation would be more suitable for his project: 2D animation or 3D animation? Give one reason.

Ans.2D animation would be more suitable, because it is simpler and quicker to create using flat images, and it is commonly and effectively used in cartoons and educational animations for children.
4Textbookcs6-q4

Sitasma is editing an audio file in multimedia software. She notices a visual graph on the screen showing changes in sound's loudness and pitch. What is this graph called, and how does it help her?

Ans.This graph is called an audio waveform. It helps her visually identify sections of loud or soft sound, making it easier to cut, trim, edit, or mix specific parts of the audio accurately.
5Textbookcs6-q5

Hari Narayan wants to design a company logo that can be resized without losing clarity. Which type of graphic should he choose: raster or vector? Give one reason.

Ans.He should choose vector graphics, because vector images are made using mathematical formulas rather than pixels, so they can be resized to any size — small or large — without becoming blurry or losing quality.
07

Textbook-Based Content: Case Study-Based Questions

2
1Textbookcs7-q1

Sundar Pulami is helping his school design a multimedia-based digital notice board. He plans to display written information about school events, scanned photographs of students, audio clips of school songs, and short video messages from teachers. Suggest which multimedia components he should use for each of these tasks and explain why.

Ans.For written information about school events, he should use the Text component, since text is the most direct way to convey instructions and announcements. For scanned photographs of students, he should use the Image component, as images visually display the students. For school songs, he should use the Audio component, since audio carries the recorded sound. For messages from teachers, he should use the Video component, because video combines moving images and sound, making the teachers' messages more personal and engaging.
2Textbookcs7-q2

Kunta Magrati is preparing a digital presentation on 'Environmental Awareness' for an inter-school multimedia competition. She wants to use images with transparent backgrounds, high-quality video clips, and clear audio narrations. Recommend appropriate file formats for her images, videos, and audio files, and explain your choices.

Ans.For images with transparent backgrounds, she should use PNG, since it supports lossless, transparent backgrounds. For high-quality video clips, she should use MOV or MP4 — MOV for high-quality professional editing, or MP4 for good quality with a smaller, more shareable file size. For clear audio narrations, she should use WAV for the highest, uncompressed sound quality during editing, or MP3 for a smaller, easily shareable file for the final presentation.
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