an object kept at a distance of 25 cm from a concave mirror of focal length 20cm. calculate the magnification , if the images real

2 thoughts on “an object kept at a distance of 25 cm from a concave mirror of focal length 20cm. calculate the magnification , if the images real”

1. Given,

   Object distance, u=25cm

   Focal length, f=20cm

   From mirror formula

   f

   1

   =

   v

   1

   +

   u

   1

   −20

   1

   =

   v

   1

   −

   25

   1

   ⇒

   v

   1

   =−

   20

   1

   +

   25

   1

   v=100cm

   The image will be real, inverted magnified

   hope it helps.

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2. therefore v= 70….

   hope it helps u

   pls mark me branliest

   Reply