An object is placed at alonger distance infront of a concave mirror of radius of curvature 40cm. At what distance the image will be formed infront of mirror and draw the ray diagram for it
Anonymous:
Is the object distance mentioned ?
no
So it's a simple diagram wait
i have answeeed the question
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Answered by
2
this is the answer.very long distance=infinity
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The object is not mentioned to be at the infinity ?
its a very long distance that infinity
if u is not mwntioned and distance is very large ypu take it infinity
Answered by
3
Hello friend I didn't include the exact image but it's gonna be the same as the one I have attached below
Since the object distance is mentioned at a longer distance so I am considering the image to be somewhere beyond C ( i.e the radius of curvature ) I have done so because the distance of the obejct is not mentioned . While the information given in the question is that the radius of curvature is 40 cm . So as per the diagram CP would be 40 cm and FP( focal length ) would be 20cm . Also FP=1/2CP .
So the image formed would be
somewheree between C and F .
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I have added two cases one when image is beyond C and one when image is at infinity :)
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