= eene(B)

RP erp) BP: :

A.

applying the sign convention

ie, BP=-v,FP=-f,BP=-u

BF _BP-FP_BP

Using equation (3) weget

peo.

ees

ou f

This relation is known as the mirror equation.

Expression for image distance :

from mirror equation

A edic

apes

vu f

aieee te wey,

v funv uf

uf

image distatice Y= 7

b) height of the object h=5cm

distance of the object u=— 15cm

radius ofcurvature R=—20cm

‘ 7 uf _-18x(-10) 15

distance of the object v= —— = __+ ~~ _ _

OF ORO Ye Ry == 30cm

Now size ofthe image Teagons ea

1=-10cm

R

62

RAY OPTICS AND OPTIGAL NSTRIN’

Contact this candidate