Question

convex f= 20 cm u = 15 cm v = ? hi = 20 cm ho = ? ​

Answer 1

Step-by-step explanation:

f=20cm

u=15cm

v=?

according to the mirrors formula

1/f=1/v+1/u

1/20=1/15+1/v

1/20-1/15 =1/v

3-4 total divided by 60=1/v

-1/60=1/v

v=-60

hi/ho=-v/u

20/ho=60/15

20/ho=4

5=ho

therefore ho=5