Home
Class 12
PHYSICS
A beam of parallel rays is brought to fo...

A beam of parallel rays is brought to focus by a planoconvex lens. A thin Concave lens of the same focal length is joined to the first lens. The effect of this is

A

the focus shifts to infinity

B

the focal point shifts towards the lens by a small distance

C

the focal point shifts away from the lens by a small distance

D

the focus remains undisturbed

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

A beam of parallel rays is brought to focus by a planoconvex. A thin Concave lens of the same focal length is joined to the first lens. The effect of this is

A convex lens of focal length 25 cm and a concave lens of focal length 10 cm are joined together. The power of the combination will be

Which of the two diverges a beam of parallel rays of light : convex lens or concave lens ?

A convex lens of focal length 0.5 m and concave lens of focal length 1 m are combined. The power of the resulting lens will be

A convex lens of focal length x and a concave lens of focal length y are placed in contact. The focal length of the combination is

A convex lens of focal length A and a concave lens of focal length B are placed in contact. The focal length of the combination is

A parallel beam of monochromatic light falls on a combination of a convex lens and a concave lens of focal lengths 15 cm and 5 cm respectively. What is the distance between the two lenses to obtain a parallel beam of light from the concave lens ?