Home
Class 11
PHYSICS
Look at the ray diagram shown ,what will...

Look at the ray diagram shown ,what will be th focal length of th e`1^(st)`and the `2^(nd)`lens,if the incident light ray passes without any deviation?

A

`-5cm`and `-10cm`

B

`+5cm`and `+10cm`

C

`+5cm`and `-5cm`

D

`+5cm`and `+5cm`

Text Solution

Verified by Experts

The correct Answer is:
C
First lens is diverging lens of focal length `5cm`&second lens is converging lens of focal length `5cm`.
Promotional Banner

Similar Questions

Explore conceptually related problems

From the ray diagram shown in Fig. calculte the focal length of concave lens. .

From the ray diagram shown below, calculate the focal length of the other convex lens.

Name the part of a lens through which a ray of light passes without suffering any deviation.

Use the following ray diagram, Fig. to calculate focal length of lens L_2 . .

Use the following ray diagram, Fig. 6(b).56 to calculate focal length of lens L_(2) .

The ray of light is incident at an angle of 45^(@) on a glass surface. What will be the critical angle of the glass when placed in air if the light ray is deviated by 12^(@) ?

In which case does a light ray pass through the centre of a thin lens without deviation?

An equiconvex lens of refractive index mu_(1) , focal length 'f' and radius of curvature 'R' is immersed in a liquid of refractive index mu_(2) . For (i) mu_(2)gtmu_(1) , and (ii) mu_(2)ltmu_(1) , draw the ray diagrams in the two cases when a beam of light coming parallel to the principal axis is incident on the lens. Also find the focal length of the lens in terms of the original focal length and the refractive index of the glass of the lens and that of the medium.