Question

a student uses lens of focal length 50 cm and another student uses a lens of 5 cm discuss the nature and find the power of lens​

Answer 1

The nature of both the lenses is virtual and erect

Power of lens of first lens =1/f

f=50cm=0.5m

P=1/0.5

=2D

P of second lens =1/f

f=5cm=0.05m

P=1/0.05

=20D