An Easy Quiz in Optics

Physics – Light

Here is an easy quiz on the topic of Optics(Physics). There are ten questions. The quiz is not timed.

Good luck.

rainbow, river, nature-2424647.jpg

1 / 10

1. Light takes about this much time to travel from our Moon to the Earth

A. 1.25 hours

B. 2.5 seconds

C. 1.25 minutes

D. 1.25 seconds

2 / 10

2. The speed of light in vacuum is approximately:

A. 300,000 miles per sec

B. 300,000 kilometers per sec

C. 30,000 kilometers per sec

D. 300,000 kilometers per hour

3 / 10

3. The light particle is known as:

A. Neutron

B. Electron

C. Photon

D. Muon

4 / 10

4. Light acts like a wave in some experiments and as a particle in some other experiments. This is called the dual nature of light.

A. False

B. True

5 / 10

5. Sunlight takes about this much time to reach the Earth from the Sun:

A. 8 hours

B. 8 seconds

C. 8 minutes

D. 80 minutes

6 / 10

6. Visible light is a part of the electromagnetic spectrum.

A. True

B. False

7 / 10

7. Like sound waves, light too requires a medium to propagate.

A. False

B. True

8 / 10

8. Infra red is part of electromagnetic spectrum:

A. with wavelengths shorter than blue

B. with wavelengths greater than red color

C. with wavelengths shorter than red color

D. with wavelengths between blue and red

9 / 10

9. ²Albert Einstein was awarded the (1921) Nobel Prize in physics for the discovery of:

A. The general theory of relativity

B. The laws of photo electric effect

C. The special theory of relativity

D. Mass energy equivalence (E=mc²)

10 / 10

10. Visible spectrum consists of:

A. Visible light does not contain Violet color.

B. Violet at one end; Red at the other end.

C. Visible light does not contain Red.

D. Blue at one end; Orange at the other end.

Your score is

The average score is 83%

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Optics Quiz