A point source S is placed at the bottom...

A point source S is placed at the bottom of a tranparent block of height 10mm and refractive index 2.72. It is immersed in a lower refractive index liquid as shown in the figure. It is found that the light emerging from the block to the liquid forms a circular bright spot of diameter 11.54 mm on the top of the block. The refractive index of the liquid is `

`1.21`

`1.30`

`1.36`

`1.42`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

GEOMETRICAL OPTICS
MOTION|Exercise Exercise - 4 | Level-I|25 Videos
FLUID
MOTION|Exercise Exercise-4 level-II|5 Videos
GRAVITATION
MOTION|Exercise Exercise - 4 Section - B Previous Years Problems|15 Videos

Similar Questions

Explore conceptually related problems

A point source S is placed at the bottom of a transparent block of height 10 mm and refractive index 2.72 . It is immersed in a lower refractive index liquid as shwon in Fig. I tis found that the light emerging from the block to the liquid forms a circular bright spot of diameter 11.54 mm on the top of the block. The refractive index of the liquid is

A point source S is placed at the bottom of a 12 mm high transparent block of diamond ( refractive index = 2.4 ) . The block is immersed in an optically rarer liquid as shown in the figure. It is found that the light emerging from the block to the liquid forms a circular bright spot of diameter 18 mm on the top of the block. What is the refractive index of the liquid ?

A spot is placed on the bottom of a slab made of transperent material of refractive index 1.5. The spot is viewed vertically from the top when it seems to be raised by 2 cm. Then, the height of the slab is

An observer can see through a pin-hole the top end of a thin rod of height h, placed as shown in the figure. The beaker height is 3h and its radius h. When the beaker is filled with a liquid up to a height 2h, he can see the lower end of the rod. Then the refractive index of the liquid is

The speed of the yellow light in a certain liquid is 2.4 x 10 8 ms^-1 . Find the refractive index of the liquid.

MOTION-GEOMETRICAL OPTICS-Exercise - 4 | Level-II

A ray of light travelling in the direction (1)/(2)(hat(i)+sqrt(3)hat(j...
Text Solution
|
A right angled prism of refractive index mu(1) is placed in a rectangu...
Text Solution
|
A point source S is placed at the bottom of a tranparent block of heig...
Text Solution
|
Four combinations of two thin lenses are given in List I. The radius o...
Text Solution
|
A transparent thin film of uniform thickness and refractive index n(1)...
Text Solution
|
Consider a concave mirror and a convex lens (refractive index 1.5) of ...
Text Solution
|
Two identical glass rods S(1) and S(2) (refractive index=1.5) have one...
Text Solution
|
A monochromatic beam of light is incident at 60^@ on one face of an eq...
Text Solution
|
Light guidance in an optical fibre can be understood by considering a ...
Text Solution
|
Light guidance in an optical fibre can be understood by considering a ...
Text Solution
|
A parallel beam of light is incident from air at an angle alpha on the...
Text Solution
|
A plano-covex lens is made of a material of refractive index n. When a...
Text Solution
|
A transparent slab of thickness d has a refractive index n(z) that inc...
Text Solution
|
A small object is placed 50 cm to the left of a thin convex lens of fo...
Text Solution
|
The diameter of a plano convex lens is 6 cm and thickness at the centr...
Text Solution
|
For an isosceles prism of angle A and refractive index mu it is found ...
Text Solution
|
A monochromatic light is travelling in a medium of refractive index n ...
Text Solution
|
Sunlight of intensity 1.3kW m^(–2) is incident normally on a thin conv...
Text Solution
|
A wire is bent in the shape of a right angled triangle and is placed i...
Text Solution
|
Consider two palne convex lanse of same radius of curvature and refrec...
Text Solution
|