Home Physics Ray Optics Spherical Mirror The focal length of a concave mirror is 20 c…
Physics Ray Optics Spherical Mirror MCQ (Single Correct)

The focal length of a concave mirror is 20 cm. Determine where an object must be placed to form an image magnified two times when the image is real-

A
30cm from the mirror
B
10cm from the mirror
C
20cm from the mirror
D
15cm from the mirror

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Text Solution

Verified by Experts
The correct answer is:
A

v = 2u

=

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