Question

Find the size nature and position of the image formed when an object of size is 1 cm is placed at a distance of 15cm from a concave mirror of focal length 10cm

Answer 1

Answer:

I suck at physics

can't tell

Answer 2

Explanation:

Concave mirror:

u = -15 cm, f = -10 cm, v =?

Mirror formula : 1/u + 1/v = 1/f

1/-15 +1/v = 1/-10

1/v = -1/10 +1/15 =( -3 +2)/30 = -1/30

v = -30 cm

Magnification, m = -v/u = -(-30)/-15 = -2

Now, h2/h1 = m

h2 = h1×m = 1 ×-2 = -2 cm

The image size is 2cm and it is real and inverted.