Question

an object 2 cm high is placed at a distance of 16 cm fron a concave mirror which produces a real image 3cm high . find (i) image distance (ii) focal length of the mirror​

Answer 1

Answer:v= -24 cm, f= -9.6 cm

Step-by-step explanation:

Given, h=2cm

u=-16 cm

h1=-3cm

v,f=???

we know that m=h1/h= -v/u

-3/2 = -v/-16

By solving v= -24

Now by using 1/f= 1/v+ 1/u

1/f = 1/-24+1/-16 = -2-3/48 = -5/48

F= -48/5 = -9.6