Refraction Through Glass

Q. When light passes from air to glass, its speed .

1. remains the same
2. increases
3. decreases

Q.

What is a divergent beam?

Q.

When light travels from air into water, its speed increases.

1. True
2. False

Q.

Why light takes the quickest path?

Q.

If a medium is denser than air, the speed of light will be:

1. $lesserinthatmedium.$

2. $moreinthatmedium.$

3. $samethroughout.$

4. $cannotbepredicted.$

Q. Fermet's theorem states that light always takes thepath.

1. shortest
2. quickest
3. longest

Q.

The floor of the swimming pool looks shallower than what it really is. Which phenomenon is responsible for it?

1. Reflection of light

2. Diffusion of light

3. Refraction of light

4. Eye defect

Q. ___________________ experiment shows that a white light can be split up into parts and recombined again.

1. Newton's rings
2. Einstein's thought
3. Newton's inverted prism
4. Newton's color wheel