Question

for which position of object convex lens forms its real and inverted image of the same size​

Answer 1

Answer:

It is said that when the needle is placed in front of the lens, a real and inverted image is formed and the size of the image is equal to the size of the needle.

Answer 2

$\huge\mathfrak {Answer 》}$

Object distance, u= – 50 cm

Image distance, v= 50 cm

Focal length = f

According to the lens formula,

u = -50 cm v = + 50 cm. f =? 1/f = 1/v €“ 1/u 1/f = 1/50 + 1/50 f = + 25 cm. = 0.25 m Power of lens (P) = 1/f = 1/ 0.25 = + 4D.