Home
Class 12
PHYSICS
Consider a tank made of glass (refractiv...

Consider a tank made of glass (refractive index 1.5) with a thick bottom. It is filled with a liquid of refractive index `mu`. A student finds that, irrespective of what the incident angle I (see figure) is for a beam of light entering the liquid, the light reflected from the liquid glass interface is never completely polarized. For this to happen, the minimum value of `mu` is :

A

`sqrt((5)/(3))`

B

`(3)/(sqrt(5))`

C

`(5)/(sqrt(3))`

D

`(4)/(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
Doubtnut Promotions Banner Mobile Dark
|

Similar Questions

Explore conceptually related problems

A lens is made of flint glass (refractive index =1.5 ). When the lens is immersed in a liquid of refractive index 1.25 , the focal length:

A capillary tube is made of glass of refractive index n' . The outer radius of the tube is R . The tube is filled with a liquid of refractive index n lt n' . What should be the minimum internal radius of the tube so that any ray that hits the tube would enter the liquid.

Knowledge Check

  • At what angle of incidence will the light reflected from glass (mu=1.5) be completely polarised

    A
    `72.8^(@)`
    B
    `51.6^(@)`
    C
    `40.3^(@)`
    D
    `56.3^(@)`

    • Similar Questions

    Explore conceptually related problems

    A cubic container is filled with a liquid whose refractive index increases linearly from top to bottom. Which of the following represents the path of a ray of light inside the liquid ?

    A glass lens of refractive index 1.5 is placed in a trough of liquid. What must be the refractive index of the liquid in order to mark the lens disappear?

    Two identical equi- concave lenses made of glass of refractive index 1.5 placed in contact has power P . When a liquid of refractive index mu is filled in the gap between the concave lenses,the power becomes (P/3) .The value of mu is (R)/(2) .Find K .

    A disc is placed on the surface of pond filled with liquid of refractive index (5)/(3) . A source of light is placed 4m below the surface of liquid. Calculate the minimum area of the disc so that light does not come out of liquid.

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

    A small illuminated bulb is at the bottom of a tank, containing a liquid of refractive index mu upto a height H. Find the expression for the diameter of an opaque disc, floating symmetrically on the liquid surface in order to cut- off the light from the bulb.

    If a glass prism is kept in a liquid of the same refractive index as that of glass, will the ray of light bend (Fig. B)? Complete the path of the ray of light.

    Home
    Profile