rays of sun falling on a concave mirror. a cardboard is held in font of it and then moved back or front, till a sharp image of sun is formed.
i) what is the nature of image?
ii)what is the point where the sharp image is formed?
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(i)real and inverted
(ii) focus
hope it'll help
(ii) focus
hope it'll help
farharahman63:
thanks
you're welcome
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