Question
Physics Question on Optics
The size of the image of an object, which is at infinity, as formed by a convex lens of focal length 30 cm is 2 cm. If a concave lens of focal length 20 cm is placed between the convex lens and the image at a distance of 26 cm from the lens, the new size of the image is :
A
1.25 cm
B
2.5 cm
C
1.05 cm
D
2 cm
Answer
2.5 cm
Explanation
Solution
The correct answer is (B) : 2.5 cm.