A point source of light is placed 4m bel...

A point source of light is placed 4m below the surface of a transparent liquid of refractive index `(5)/(3)`. The minimum diameter of a disc which should be placed over the source on the surface of liquid to cut off all light coming out of liquid is :

1 m

3 m

4 m

None of these.

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

MOCK TEST-1
MODERN PUBLICATION|Exercise MCQs|47 Videos
MOCK TEST-3
MODERN PUBLICATION|Exercise MCQs|49 Videos

Similar Questions

Explore conceptually related problems

A point source of light is kept below the surface of water (n_(w) = (4)/(3)) at a depth of sqrt7 m . The radius of the circular bright patch of light noticed on the surface of water is …… m .

A ray of light is travelling through a medium of refractive index sqrt2 with respect to air. When it is incident on the surface making 45^@ with the surface, which of the following will take place ?

A source of light is placed at a distance of 1 m from a photo cell and the cut off potential is V_0 . If the source of light is placed at a distance of 50 cm, the cut off potential will be :

A ray of light passes through four transparent media with refractive index n_(1),n_(2),n_(3)andn_(4) as shown. The surface of all media are parallel If the emergent ray DE is parallel to incident ray AB, then

Diameter of a particular dark ring in Newton rings experiment in reflected system is 0.8 mm. When a transparent liquid of refractive index 1.6 is placed between lens and the plate, diameter of ring is approx

A Plano-convex lens of radius of curvature 0.1m is kept over a plane glass plate with curved surface of the lens touching it. The gap between the glass plate and the curved surface of the lens is filled with a liquid. If the combined focal length of the combination is 0.4m, calculate the refractive index of the material of the liquid. Given R.I. of the material of the lens is 1.5.

The velocity of light in glass whose refractive index with respect to air is 1.5 is 2 xx 10^8 m//s . In a certain liquid the velocity of light is found to be 2.5 xx 10^8 m//s . The refractive index of the liquid with respect to air is :

MODERN PUBLICATION-MOCK TEST-2-MCQs

Paragraph-1 : Two discs A and B are mounted coaxially on a vertical ax...
Text Solution
|
Which of the graphs shown below correctly represents the variation of ...
Text Solution
|
A point source of light is placed 4m below the surface of a transparen...
Text Solution
|
Statement-1 : A block of mass m starts moving on a rough horizontal su...
Text Solution
|
Statement I: If the accelerating potential in an X-ray tube is increas...
Text Solution
|
Statement-1 : The formula connecting u, v and f for a spherical mirror...
Text Solution
|
If a body of mass m moving with velocity v collides with another body ...
Text Solution
|
If units of length, mass and force are chosen as fundamental units, th...
Text Solution
|
The relation between time t and distance x is given by t=ax^(2)+ bx. W...
Text Solution
|
Given vecr=2hati+hatj+hatk and vecp=2hati-3hatj+hatk. Then angular mom...
Text Solution
|
The angle between two vectors vecA=vecB is theta. The resultant of vec...
Text Solution
|
A Frame of reference attached to a satellite orbiting around earth can...
Text Solution
|
A ball is dropped from height of Im. If coefficient of restituion betw...
Text Solution
|
A weight lies on a rough horizontal surface. It is found that a force ...
Text Solution
|
Minimum work done to shift a body of mass m from a circular orbit of 2...
Text Solution
|
A thick rope of rubber of density 1.5 kg//m^(3) and Y = 5 xx 10^(6) Nm...
Text Solution
|
A simple harmonic oscillator has an amplitude A and time period T, the...
Text Solution
|
A road runs between two parallel rows of buildings. A motorist moving ...
Text Solution
|
The P-V diagram for a cyclic process is a triangle ABC drawn in order....
Text Solution
|
Two slabs A and B, each though similar, in all other respects, have di...
Text Solution
|