Q. 44.0( 9 Votes )

When a concave mi

Answer :

f = -10 cm [ since rays coming from infinity meet at focus using a concave mirror ]

u = -20 cm


Since candle flame is placed at the centre of curvature [ as object distance is 20 cm which is twice of focal length i.e. center of curvature C ], so the image will be formed at C. So screen will be placed 20 cm from the mirror on the same side of the object. Size of the image will be same as the size of object = 2 cm.



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