Question

A concave lens of focal length 15 cm, forms an image 10 cm from the lens.How far is the object placed from the lens?Draw a ray diagram.
​

Answer 1

Answer:

the object is placed 25 CM for away from the mirror

Explanation:

please mark me as brainliest and give 10 thanks

Answer 2

Answer:

Answer:

Focal length (f ) = -15 cm

Distance of image (v) = -10 cm

1v–1u=1f

1/u = -(1/10) – (1/- 15)

1/u =1/15 – 1/10

1/u = -0.033

u = -30 cm

so the object is placed 30 cm away from the concave lens.

Hope this answer is help ful for you

Please brainlest me the answer