SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A student is 2.50m away from a convex lens while her image is 1.80m from the lens, what is the focal length?
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1.05m
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2.50m
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1.39m
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0.72m
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Explanation:
Detailed explanation-1: -A student is 2.50m away from a convex lens while her image is 1.80m from the lens, what is the focal length? answer choices. 1.05m.
Detailed explanation-2: -Thus, the boy should stand at a distance of 2.5 m from the mirror.
Detailed explanation-3: -So, the final answer is f=u×vu−v. Note: When the subject is in focus, the focal length of the lens is the distance between the lens and the image sensor, normally expressed in millimetres (e.g., 28 mm, 50 mm, or 100 mm).
There is 1 question to complete.