) A concave mirror forms the real image of an object which is magnified 4 times. The object is moved 3 cm away, the magnification of the image is 3 times/What is the focal length of the mirror?
A) 3 cm B) 4 cm C) 12 cm D) 36 cm
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Option C is correct.
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Answer:
D answer is correct
Explanation:
d is focal length 36
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