Question

an object is placed at 10 cm distance infront of a concave mirror of radius of curvature 20cm . find the position , nature and magnification of the image​

Answer 1

Solution--

u=-10cm

focal length=-10cm

Let the position be v

1/f=1/v-1/u

1/-10=1/v-1/-10

1/-10+1/-10=1/v

2/-10=1/v

1/-5=1/v

Hence

=>. v=-5cm (position of image)

Nature =Virtual,erect

let the magnification be. m

so,

m=v/u

m=-5/-10

Magnification is 1/2..

Hope it helps to you!