History of Snell's Law

Q.

When light is incident on a medium at angle i and refracted into a second medium at an angle r, the graph of sin i vs sinr is as shown in the graph. From this, one can conclude that

1. Velocity of light in the second medium is 1.73 times the velocity of light in the I medium

2. Velocity of light in the I medium is 1.73 times the velocity in the II medium

3. 
4. 

Q.

Refraction is the phenomena of :

1. light travelling from one medium to another

2. bending of light while it changes its medium

3. Bouncing off of light when it strikes a medium

4. Decrease in the intensity of light when it passes from one medium to the other

Q.

If for a pair of media, the value of $\frac{sini}{sinr}$ is greater than 1, then which of the following statement is true?

1. If light goes from medium A to medium B, it will bend towards the normal

2. If light goes from medium A to medium B, it will bend away from the normal

3. If light goes from medium A to medium B its speed reduces
4. If light goes from medium B to medium A its speed increases