Question

A light wave travels through glass (n = 1.50) at an angle of 35degrees. What angle does it have when it passes from the glass into water (n = 1.33)? Use the equation .

A.40.3degrees
B.0.647degrees
C.0.509degrees
D.30.6degrees

Answer 1

A - 40.3 degrees

Step-by-step explanation:

Answer 2

Explanation :

It is given that the light waves travels through glass into water.

Refractive index of glass,
`n_1=1.5`

Refractive index of water,
`n_2=1.33`

`\theta_1=35^0`

`\theta_2=?`

Using Snell's law

`(sin\ \theta_1)/(sin\ \theta_2)=(n_2)/(n_1)`

Where
`\theta_2` is the angle when the light passes from the glass into water.

`(sin(35))/(sin\ \theta_2)=(1.33)/(1.5)`

`sin\ \theta_2=0.64`

`\theta_2=39.7^0`

So, the correct option can be (A) " 40.3 degrees ".