A rectangular glass slab rests at the bottom of a trough of water. A ray of light incident on water surface at an angle of `50^(@)` passes through water into glass. What is angle of refraction in glass ? Take `mu` for water `4//3` and `mu` for glass `3//2`.

Explanation

To solve the problem of finding the angle of refraction in glass when a ray of light passes from water into glass, we can follow these steps:

### Step 1: Identify the given values
- Angle of incidence in water, \( i = 50^\circ \)
- Refractive index of water, \( \mu_1 = \frac{4}{3} \)
- Refractive index of glass, \( \mu_2 = \frac{3}{2} \)

### Step 2: Apply Snell's Law at the water-glass interface
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