A fish looking up through the water sees...

A fish looking up through the water sees the outside world contained in a circular horizon.If the refractive index of water is `4//3` and fish is 12 cm below the surface of water,then the radius of the circular horizon is

`16 cm^2`

`9 cm^2`

`12 cm^2`

`13.6 cm^2`.

Text Solution

Verified by Experts

Topper's Solved these Questions

UNIT TEST -06
MODERN PUBLICATION|Exercise EXERCISE|461 Videos
TEXUAL QUESTIONS
MODERN PUBLICATION|Exercise EXERCISE|195 Videos
UNIT TEST -07
MODERN PUBLICATION|Exercise EXERCISE|154 Videos

Similar Questions

Explore conceptually related problems

The refractive index of water is 4//3 .How much time will light take to travel through a water column of length 500 m?

A fish in tank sees the outside world as if it is at the vertex of a cone such that the circular base of the cone is at the surface of the water.If the depth of the fish is d and the critical angle for water-air interface is C,what is the radius of circle?

Find the critical angle for a glass-water interface,if refractive index of glass 3//2 and that of water is 4//3 .

The radius and height of right circular cone area in the ratio 4:3 and is volume is 2156cm^3 . Find the curved surface area of the cone.

The optical path of a monochromatic ligth is the same,if it goes through 2.0 cm of glass or 2.25 cm of water.If the refractive index of water is 4//3 ,what is the refractive index of glass?

If the refractive index from air to glass is 3//2 adn that from air to water is 4//3 ,find the ratio of the focal length of glass lens in water in air.

Refractive index of water w.r.t. air is 4/3 and that of glass w.r.t air is 2/3 what will be the refractive index of glass w.r.t water ?

One end of a cylinrical rod is grounded to a hemispherical surface or rdius R=20 mm.It is immersed in water of refractive ndex 1.33.If the refractive index of the rodd is 1.50,find the position of the image of an object placed on the axis of the rod inside water at 10 cm from the pole.

MODERN PUBLICATION-UNIT TEST -06-EXERCISE

A,B and C in the diagram represent rays of light incident upon a face ...
Text Solution
|
Refractive index of water is 5//3. A light source is placed in water a...
Text Solution
|
A fish looking up through the water sees the outside world contained i...
Text Solution
|
A diver in swimming pool wants to signal his distress to a person lyin...
Text Solution
|
An equiconvex lens has focal length equal to the radius of curvautre.I...
Text Solution
|
What is the focal length of a double convex lens for which radius of c...
Text Solution
|
A lens behaves as a converging lens in air and diverging lens in wate...
Text Solution
|
The two surfaces of a convex lens are of same radius of curvature.It i...
Text Solution
|
The two surfaces of a convex lens are of same radius of curvature.It i...
Text Solution
|
A convex lens is placed in contact with a mirror as shown in figure. I...
Text Solution
|
For a given distance between an object and an image screen,magnificati...
Text Solution
|
An object is placed at a distance of f//2 from a convex lens .The imag...
Text Solution
|
A camera is focussed to take a cose up picture of an insect at a dista...
Text Solution
|
The graph drawn with object distance along abbscissa and image distanc...
Text Solution
|
Two plane -convex lenses,each having focal length of 0.4 m,are pressed...
Text Solution
|
A film projector magnifies a 100 cm^2 film strip on a screen.If the li...
Text Solution
|
In order to include the effect of thickness t of the lens,following f...
Text Solution
|
A beam of light is incident on a convex lens parallel to its principal...
Text Solution
|
The plane face of the plano-convex lens of focal length 20 cm is silve...
Text Solution
|
A lens having focal length f and aperture of diameter d//2 in the cent...
Text Solution
|