If the focal length of concave lens is 2 cm. Calculate its power.
A lens has power -1.5 D. What is the focal length and nature of lens.
Hand lens has power 10 D. Calculate how far from the lens must the book be held to read.
If lightning candle is at 10cm from convex lens, image 50cm Calculate magnification.
Which one is not the nature of image formed by concave lens?
If the focal length of lens is 2 cm then what is its power ?
Which one is the correct relation among f,u and v in lens?
Light rays from infinite distance when on a convex lens where is image ?
PathshalaNepal.com is a Registered Company of E. Pathshala Pvt Ltd Nepal. Registration number : 289280
© 2020. All right Reversed.E. Pathshala Pvt Ltd