Question

you are provided with two convex lens of focal length 15 cm and 25 cm respectively . which of the two is of large power? give reason for your answer​

Answer 1

Answer:

Ray optics

Explanation:

★ Power ( P ) ≈ 1 / Focal length

» so ; more the focal length less will be the power of convex lens and focal length of convex lens I positive.

★ power of 15 cm convex lens > Power of 25 cm foval length convex lens .