Calculate the distance of an object of height h from a concave mirror of radius 20 cm to obtain a real image of magnification 2. Find the location of image also.

Calculate the distance of an object of height h from a concave mirror

1.	Calculate the distance of an object of height h from a concave mirror of radius 20 cm to obtain a real image of magnification 2. Find the location of image also.
Answer» Solution :`R=-20 CM and M = - 2` FOCAL LENGTH `f = R/2 = -10 cm` Magnification M `-v/u=-2` (GIVEN) `:. U = 2u` Using mirror formula `1/u+1/u=1/(f)rArr1/(2u)+1/u=-1/10` `rArr3/(2u)=1/10rArrmu=-15 cm ` `:. v = 2 xx(-15)=-30cm`

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Calculate the distance of an object of height h from a concave mirror of radius 20 cm to obtain a real image of magnification 2. Find the location of image also.

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