Question

a concave mirror produces an errect image of magnification 2.if the focal length of the mirror is 30 cm.find the distance of object from mirror​

Answer 1

Answer:

Since the image is erect , so the magnification ratio must be positive .

m=2

also u=−10cm

so m=− v/u

2=v/10

v=20cm

So the image is virtual and 20 cm from mirror on the other side of the object.

Explanation:

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