Optics Question 925

Question: A convex mirror has a focal length f. A real object is placed at a distance f in front of it from the pole produces an image at

[AFMC 2005]

Options:

A) Infinity

B) f

C) f/2

D) 2f

Show Answer

Answer:

Correct Answer: C

Solution:

Here focal length =f and u=−f On putting these values in 1f=1u+1v

⇒1f=−1f+1v⇒v=f2

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