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You are given a convex lens of focal len...

You are given a convex lens of focal length 15 cm. At what distance from the lens should a candle be placed to observe a virtual image of the flame?

A

0 - 15 cm

B

15 - 30 cm

C

30 - 45 cm

D

anywhere

Text Solution

AI Generated Solution

To find the distance from the convex lens at which a candle should be placed to observe a virtual image of the flame, we can follow these steps: ### Step 1: Understand the properties of a convex lens A convex lens converges light rays that are parallel to its principal axis. When an object is placed between the focal point (F) and the lens, a virtual image is formed on the same side as the object. ### Step 2: Identify the focal length The focal length (f) of the convex lens is given as 15 cm. ...
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