Question

An object is placed at 15 cm from a concave mirror of radius of curvature 60 cm find the position and its magnification

Answer 1

Your answer is --

Given, u = -15cm and R = -60cm

we know that

focal length f = R/2 = -60/2 = -30cm

Now,

according to mirror formula

➡ 1/v + 1/u = 1/f

=> 1/v = 1/f - 1/u

=> 1/v = -1/30 + 1/15

=> 1/v = -1+2 /30

=> 1/v = 1/30

=> v = 30 cm

therefore , image is 30cm from the mirror and + sign show that image is virtual and erect .

Now,

➡ Magnification m = -v/u

=> m = -30/-15

=> m = 2

Hence, magnification of m is 2

【 Hope it helps you 】

Answer 2

Answer:

here is your answer

Explanation:

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