Computer Graphics Week 1 NPTEL Assignment Answers 2025
Need help with this week’s assignment? Get detailed and trusted solutions for Computer Graphics Week 1 NPTEL Assignment Answers. Our expert-curated answers help you solve your assignments faster while deepening your conceptual clarity.
✅ Subject: Computer Graphics
📅 Week: 1
🎯 Session: NPTEL 2025 July-October
🔗 Course Link: Click Here
🔍 Reliability: Verified and expert-reviewed answers
📌 Trusted By: 5000+ Students
For complete and in-depth solutions to all weekly assignments, check out 👉 NPTEL Computer Graphics Week 1 NPTEL Assignment Answers
🚀 Stay ahead in your NPTEL journey with fresh, updated solutions every week!
NPTEL Computer Graphics Week 1 Assignment Answers 2025
1. What do we do in CG?
a. We generate 2D image and display on a screen.
b. We generate 3D image and display on a screen.
c. Both a, and b.
d. None of these.
Answer : For Answers Click Here
2. What does the video memory do?
a. It stores the image in the form of string of 0 and 1, which is generated by display controller.
b. It stores the image in the form of string of 0 and 1, which is generated by video controller.
c. It stores the videos, which is generated by display controller.
d. All of the above.
Answer :
3. Which among the following is correct?
a. We can use a raster scan method to render a vector graphics but cannot use a vector scan method to render a raster graphics.
b. We can use a vector scan method to render a raster graphics but cannot use a raster scan method to render a vector graphics
c. We can use a raster scan method to render a vector graphics and vice versa.
d. We can use only raster scan method to render a raster graphics and only vector screen method to render vector graphics.
Answer :
4. Computer graphics are used in mobile phones, information kiosks at popular spots such as airports, ATMS, large displays at open air music concerts, air traffic control panels, and so on.
a. True
b. False
Answer :
5. The term “Computer Graphics” was coined in
a. 1860
b. 1869
c. 1960
d. 1965
Answer : For Answers Click Here
6. The process of removing objects that lie outside view volume is called
a. clipping
b. projection transformation
c. hidden surface removal
d. hidden surface detection
Answer :
7. How many phases are there in the evolution of computer graphics?
a. 1
b. 2
c. 4
d. 10
Answer :
8. How many stages are there in 3D graphics pipeline?
a. 1
b. 4
c. 0
d. 5
Answer :
9. The “childhood” phase in the evolution of computer graphics was the period 1964-1970.
a. True
b. False
Answer :
10. First stage of the 3D graphics pipeline is “object representation”.
a. True
b. False
Answer : For Answers Click Here
NPTEL Computer Graphics Week 1 Assignment Answers 2024
Q1. The CAD system DAC-1 (by IBM) falls under which phase of computer graphics?
- a. Gestational
- b. Childhood
- c. Adulthood
Answer: a. Gestational
Explanation:
The “Gestational phase” refers to the initial phase in the evolution of computer graphics when early developments and concepts were being explored. DAC-1 was one of the earliest CAD systems, developed by IBM in the 1960s, marking it as part of this early gestation phase.
Q2. Sylvan Chasen (Lockheed, 1981) proposed ___ phases of evolution in computer graphics:
- a. Three
- b. Four
- c. Five
- d. Eight
Answer: b. Four
Explanation:
Sylvan Chasen proposed that the development of computer graphics could be divided into four phases: Gestational, Childhood, Adolescence, and Adulthood. These phases describe the maturity of computer graphics technology.
Q3. What does the video memory do?
- a. It stores the image in the form of string of 0 and 1, which is generated by display controller.
- b. It stores the image in the form of string of 0 and 1, which is generated by video controller.
- c. It stores the videos, which is generated by display controller.
- d. All of the above.
Answer: b.
Explanation:
The video memory (VRAM) stores the binary data (0s and 1s) of images or frames. This data is generated by the video controller, not the display controller. It is later used to refresh the screen.
Q4. Which among the following is correct?
- a. Raster can render vector graphics but not the other way around
- b. Vector scan can render raster but not the other way
- c. Raster scan can render vector graphics and vice versa
- d. Raster only for raster; vector only for vector
Answer: c.
Explanation:
Raster displays can simulate vector graphics by drawing lines and curves with pixels, and vector displays can simulate raster by drawing each pixel as a dot or line. Thus, both can render each other to a certain extent.
Q5. Computer graphics are used in mobile phones, kiosks, concerts, air traffic control, etc.
- a. True
- b. False
Answer: a. True
Explanation:
Computer graphics are widely used in interactive interfaces and information display systems, including mobile UIs, digital kiosks, and visualization systems like those in air traffic control or concerts.
Q6. The term “Computer Graphics” was coined in:
- a. 1860
- b. 1869
- c. 1960
- d. 1965
Answer: c. 1960
Explanation:
The term “Computer Graphics” was coined in 1960 by William Fetter, who worked for Boeing. He used it to describe his work creating human-like figures using computers for cockpit design.
Q7. The process of removing objects that lie outside the view volume is called:
- a. Clipping
- b. Projection Transformation
- c. Hidden Surface Removal
- d. Hidden Surface Detection
Answer: a. Clipping
Explanation:
Clipping is the process of removing parts of objects or objects that are outside the viewing window or view volume, to enhance rendering efficiency.
Q8. How many stages are there in the 3D graphics pipeline?
- a. 1
- b. 4
- c. 0
- d. 5
Answer: d. 5
Explanation:
The 3D graphics pipeline typically includes five stages:
- Object Representation
- Modeling Transformation
- Lighting
- View Transformation
- Rasterization
Q9. First stage of the 3D graphics pipeline is “object representation”.
- a. True
- b. False
Answer: a. True
Explanation:
“Object Representation” is the first stage, where 3D models or geometrical data of objects are defined using polygons, vertices, and curves.
Q10. Computer graphics is the process of ___ static images or animations on computer screens.
- a. Rendering
- b. Removing
- c. Clearing
Answer: a. Rendering
Explanation:
Rendering is the process of generating images or frames from models using software or hardware, and is essential for both static and animated computer graphics.
