Chapter 4: Dispersion of Light - Science Mcqs for Grade 7

1.

The refractive index of water is

A. 0.33

B. 0.5

C. 1.5

D. 1.33

Answer & Solution Discuss in Board

2.

If light enters any substance with refractive index, it is

A. perpendicular

B. at a certain angle

C. parallel

D. at critical angle

Answer & Solution Discuss in Board

3.

Thin flexible glass rods to transfer data from one region to another are known as

A. glass cables

B. reflection fibers

C. optical fibers

D. copper fibers

Answer & Solution Discuss in Board

4.

When light bends, it

A. causes tricks in the air

B. causes tricks on our eyes

C. causes tricks on our brain

D. damages our eyes

Answer & Solution Discuss in Board

5.

The concave lens is also known as

A. converging lens

B. diverging lens

C. dispersing lens

D. conducting lens

Answer & Solution Discuss in Board

6.

Screens of monitors and televisions are made by

A. red dots

B. red, yellow and green dots

C. red, green and blue dots

D. white dots

Answer & Solution Discuss in Board

7.

Filter absorbs

A. only primary colored lights

B. secondary colored lights

C. tertiary colored lights

D. all colors of white light

Answer & Solution Discuss in Board

8.

Mirages are more common in

A. rainforests

B. dry forests

C. deserts

D. highlands

Answer & Solution Discuss in Board

9.

We can see things because light

A. is absorbed by objects

B. enters our eyes

C. reflects from our eyes

D. is colorless

Answer & Solution Discuss in Board

10.

The number of red cells in an eye is

A. 320 million

B. 120 million

C. 220 million

D. 200 million

Answer & Solution Discuss in Board

Practice MCQ Questions and answers on Chapter 4: Dispersion of Light - Science Mcqs for Grade 7

1. The refractive index of water is

Answer & Solution

2. If light enters any substance with refractive index, it is

Answer & Solution

3. Thin flexible glass rods to transfer data from one region to another are known as

Answer & Solution

4. When light bends, it

Answer & Solution

5. The concave lens is also known as

Answer & Solution

6. Screens of monitors and televisions are made by

Answer & Solution

7. Filter absorbs

Answer & Solution

8. Mirages are more common in

Answer & Solution

9. We can see things because light

Answer & Solution

10. The number of red cells in an eye is

Answer & Solution

Read More Section(Science Mcqs)

1.

The refractive index of water is

2.

If light enters any substance with refractive index, it is

3.

Thin flexible glass rods to transfer data from one region to another are known as

4.

When light bends, it

5.

The concave lens is also known as

6.

Screens of monitors and televisions are made by

7.

Filter absorbs

8.

Mirages are more common in

9.

We can see things because light

10.

The number of red cells in an eye is