Multiple Glass Slabs with Different R.I

Q.

The refractive index of water is $\frac{4}{3}$ and that of glass is $\frac{5}{3}$. What will be the critical angle for the ray of light entering the water from the glass?

1. ${\sin }^{-1}\left(\frac{4}{5}\right)$

2. ${\sin }^{-1}\left(\frac{5}{4}\right)$

3. ${\sin }^{-1}\left(\frac{1}{2}\right)$

4. ${\sin }^{-1}\left(\frac{2}{1}\right)$

Q.

For the same angle of incidence, the angles of refraction in media P, Q and R are ${35}^{\circ }$, ${25}^{\circ }$, ${15}^{\circ }$ respectively. In which medium will the velocity of light be minimum?

Q.

For the same angle of incidence, the angles of refraction in media P, Q and R are ${35}^0$, ${25}^0$, ${15}^0$ respectively. In which medium will the velocity of light be minimum?

Q.

It is given that the value of (sin i / sin r) when light enters from medium P to medium Q is less than 1.

1. P is optically denser than Q

2. P and Q have same optical density

3. Not possible

4. Q is optically denser than P

Q.

You are given water, alcohol, glycerine and kerosene. In which of the media, a ray of light incident obliquely at some angle would bend the most?

1. Kerosene

2. Water

3. Alcohol

4. glycerine

Q.

A beam of light is traveling from Region I to Region IV (refer figure). The refractive index of Region I, II, III and IV are $n_0,\frac{n_0}{2},\frac{n_0}{6}and\frac{n_0}{8}$ respectively. The angle of incidence $\theta$ for which the beam just misses entering Region IV is:

1. ${\text{sin}}^{-1}\left(\frac{3}{4}\right)$

2. ${\text{sin}}^{-1}\left(\frac{1}{8}\right)$

3. ${\text{sin}}^{-1}\left(\frac{1}{4}\right)$

4. ${\text{sin}}^{-1}\left(\frac{1}{3}\right)$