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At what distance from a convex mirror of focal length 2.5 m should a boy stand so that his image has height equal to half the original height ? The principal axis is perpendicular to the height?
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At what distance from a convex mirror of focal length 2.5 m should a b...
Magnification=height of the image/height of the object = -image distance/object distance
Let the actual height be x
=(x/2)/x
=1/2
1/2= -v/u
Using sign convention, 
1/2 = v/u
u=2v
That is object distance is twice the image distance
So, the object should be placed at the centre of curvature and the image will be formed at focus.
Object should be placed at centre of curvature =2(2.5)=5cm
The image will be formed at focus =2.5cm
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At what distance from a convex mirror of focal length 2.5 m should a boy stand so that his image has height equal to half the original height ? The principal axis is perpendicular to the height?
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At what distance from a convex mirror of focal length 2.5 m should a boy stand so that his image has height equal to half the original height ? The principal axis is perpendicular to the height? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about At what distance from a convex mirror of focal length 2.5 m should a boy stand so that his image has height equal to half the original height ? The principal axis is perpendicular to the height? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for At what distance from a convex mirror of focal length 2.5 m should a boy stand so that his image has height equal to half the original height ? The principal axis is perpendicular to the height?.
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