Home
Class 12
PHYSICS
[" 33.A concave mirror of focal length '...

[" 33.A concave mirror of focal length 'f,' is placed at "],[" a distance of 'd' from a convex lens of focal length 'f "_(2)" '."],[" A beam of light coming from infinity and falling on "],[" this convex lens-concave mirror combination returns "],[" to infinity.The distance 'd' must equal "],[[" (a) "f_(1)+f_(2)," (b) "-f_(1)+f_(2)],[" (c) "2f_(1)+f_(2)," (d) "-2f_(1)+f_(2)]]

Promotional Banner

Similar Questions

Explore conceptually related problems

A concave mirrorr of focal length f_(1) is placed at a distance of d from a convex lens of focal length f_(2) . A beam of light coming from infinity and falling on this convex lens-concave mirrorr combination returns to infinity. The distance d must equal.

A concave mirrorr of focal length f_(1) is placed at a distance of d from a convex lens of focal length f_(2) . A beam of light coming from infinity and falling on this convex lens-concave mirrorr combination returns to infinity. The distance d must equal.

A concave mirror of focal length ‘ f_1 ' is placed at a distance‘d’ from a convex lens length ‘ f_2 ’. A beam of light coming from infinity and falling on this convex lens concave mirror combination returns to infinity. The distance ‘d’ must be.

A concave lens of focal length 20 cm placed in contact with ah plane mirror acts as a convex mirror of focal length

A convex lens of focal length 'f' is placed in contact with a concave lens of the same focal length. The equivalent focal length of the combination is

A convex lens of focal length f_(1) is kept in contact with a concave lens of focal length f_(2) . Find the focal length of the combination.

A convex lens of focal length f_(1) is kept in contact with a concave lens of focal length f_(2) . Find the focal length of the combination.