Light and Human Eye

Here are some MCQs on Light and Human Eye

1. What is the speed of light in a vacuum?

a) 300,000 km/s

b) 300,000 m/s

c) 300,000,000 m/s

d) 3,000,000,000 m/s

2. Which of the following is not a type of electromagnetic radiation?

a) Radio waves

b) X-rays

c) Sound waves

d) Gamma rays

3. Light travels in a straight line because of:

a) Reflection

b) Refraction

c) Diffraction

d) Rectification

4. When light passes from a rarer medium to a denser medium, it:

a) Speeds up

b) Slows down

c) Stays the same

d) Changes direction

5. The bending of light as it passes from one medium to another is called:

a) Reflection

b) Refraction

c) Diffraction

d) Dispersion