Question

if the hieght of the object in the problem is 1.2cm what will be the height of image​

Answer 1

Answer:

PHYSICS

An object of height 1.2m is placed before a concave mirror of focal length 20cm so that a real image is formed at a distance of 60cm from it. Find the position of an object. What will be the height of the image formed?

Share

Study later

ANSWER

Given :-

h

0

=1.2m

f=−20cm

ν=−60cm

from mirror formula,

v

1

+

u

1

=

f

1

−60

1

+

u

1

=

−20

1

u

1

=

60

1

−

20

1

=

60

−2

u=−30cm

Magnification, m=

u

−v

=

−30

−(−60)

=−2

m=

h

0

h

i

=−2

h

i

=−2×1.2=−2.4m

h

i

=−2.4m

Explanation:

hope its helpful please mark me as brainlieast