Light Reflectio...

A ray of light is travelling through a medium of refractive index  $$\sqrt { 2   }$$ with respect to air. When it is incident on the surface making an angle $${ 45 }^{ o }$$ with the surface, which of the following will take place?(Medium to which refracted ray travels is air)

Monochromatic light is refracted from air into the glass of refractive index $$ \mu $$. The ratio of the wavelength of incident and refracted waves is

The refractive indices of glass and water are 3/ 2 and 4/ 3 respectively. The refractive index of glass with respect to water is

A ray of light is incident on the surface of separating two transparent medium at an angle $$45^0$$ and is refracted in medium at an angle $$30^0$$. Velocity of light in the medium will be...

A glass containing a liquid appears to be half filled when viewed from top, if it is actually two-thirds filled. The refractive index of liquid is

The image formed by a convex mirror of focal length 30 cm is a quarter of the size of the object. The distance of the object from the mirror is-

A convex lens is placed somewhere in between an object and a screen. The distance between the object and screen is $$48\ cm$$. If the numerical value of the magnification produced by the lens is $$3$$, the focal length of the lens is :

A ray of light is incident on a glass at an angle of $$60^o$$. What would be the refractive index of glass, if reflected and refracted rays are perpendicular to each other ?

$${ n }_{ 12 }\times{ n }_{ 21 },$$ in simplest from is

Two objects A and B when placed in placed in turn in front of a concave mirror of focal length 7.5 cm give images of equal size. If A is three times the size of B and is placed 30 cm from the mirror, find the distance of B from the mirror.