Question

what is the ray diagram of lens if f = 4 , h = 3 and u= -6​

Answer 1

Answer:

Explanation:

Since focal length f=4 > 0 hence the lense is convex lens

1/f = 1/u + 1/v

1/4 = 1/-6 + 1/v

1/v = 1/4 + 1/6

v = 24/10 = 2.4

So, v > 0. Image will we on the right side of the lens.

M = h1/h0 = -v1/v0 = - v/u

⇒ h1/3 = - (2.4/-6) = 0.4

h1 = 1.2