When a monochromatic light is incident on a surface separating two media, both the reflected and refracted lights have the same

The power of a thin convex lens placed in air is +4 D . The refractive index of the material of the convex lens is $\frac{3}{2}$. If this convex lens is immersed in a liquid of refractive index $\frac{5}{3}$, then

The refractive index of the material of a small angled prism is 1.6. If the angle of minimum deviation is $4.2^{\circ}$, the angle of the prism is

The Brewster angle for air to glass transition of light is (Refractive index of glass $=15$ )