A thin plano-convex lens acts like a con...

A thin plano-convex lens acts like a concave mirror of radius of curvature `20 cm` when its plane surface is silvered. The radius of curvature of the curved surface if index of refraction of its matarial is `1.5` will be

`0.4 m`

`0.2 m`

`0.1 m`

`0.75 m`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

RAY OPTICS
ERRORLESS |Exercise Refraction of Light at Plane Surfaces|9 Videos
RAY OPTICS
ERRORLESS |Exercise Refraction at Curved Surface|8 Videos
MAGNETISM
ERRORLESS |Exercise Assertion & Reason|1 Videos
WAVE OPTICS
ERRORLESS |Exercise SET|23 Videos

Similar Questions

Explore conceptually related problems

A thin plano-convex lens acts like a concave mirror of focal length 0.2m when silvered from its plane surface.The refractive index of the material of the lens is 1.5 .The radius of curvature of the convex surface of the lens will be: 0.1m

The focal length of a double convex lens is equal to radius of curvature of either surface. The refractive index of its material is

The radius curvature of each surface of a convex lens of refractive index 1.5 is 40 cm. Calculate its power.

A plano-convex lens is made of refractive index 1.6. The radius of curvature of the curved surface is 60 cm. The focal length of the lens is

A plano-convex lens has refractive index 1.6 and radius of curvature 60 cm. What is the focal length of the lens?

The plane surface of a plano-convex lens of refracting index 1.5, is silvered. The radius of curvature of curved surface is R. Find the focal length of the mirror thus formed.

The focal length of a convex lens is 10 cm and its refractive index is 1.5 . If the radius of curvature of one surface is 7.5 cm, the radius of curvature of the second surface will be :

The focal length of a convex lens is 10 cm and its refractive index is 1.5. If the radius of curvature of one surface is 7.5 cm , the radius of curvature of the second surface will be

ERRORLESS -RAY OPTICS-SET

A thin plano-convex lens acts like a concave mirror of radius of curva...
Text Solution
|
In an astronomical telescope in normal adjustment a straight black lin...
Text Solution
|
Three lenses L(1) , L(2) , L(3) are placed co-axially as shown in figu...
Text Solution
|
An object is placed at a point distant x from the focus of a convex le...
Text Solution
|
The diameter of the eye-ball of a normal eye is about 2.5 cm . The pow...
Text Solution
|
In a thin spherical fish bowl of radius 10 cm filled with water of ref...
Text Solution
|
A small fish 0.4 m below the surface of a lake is viewed through a sim...
Text Solution
|
A water drop in air refractes the light ray as
Text Solution
|
Which of the following ray diagram show physically possible refraction...
Text Solution
|
Following figure shows the multiple reflections of a light ray along a...
Text Solution
|
When the rectangular metal tank is filled to the top with an unknown l...
Text Solution
|
A concave mirror and a converging lens (glass with mu = 1.5) both have...
Text Solution
|
A ray of light strikes a plane mirror M at an angle of 45^(@) as shown...
Text Solution
|
A slab of glass, of thickness 6 cm and refractive index 1.5, is placed...
Text Solution
|
A point source of light S is placed at the bottom of a vessel containi...
Text Solution
|
A point object is placed midway between two plane mirrors a distance a...
Text Solution
|
A convergent beam of light is incident on a convex mirror so as to con...
Text Solution
|
PQR is a right angled prism with other angles as 60^(@) and 30^(@). Re...
Text Solution
|
When a ray is refracted from one medium to another, the wavelength cha...
Text Solution
|
Two this lenses, when in contact, produce a combination of power +10 d...
Text Solution
|
The plane faces of two identical plano convex lenses, each with focal ...
Text Solution
|