Define power of a lens. What is its unit? One student uses a lens of focal length 50 cm and another of –50 cm. What is the nature of the lens and its power used by each of them?

NCERT Class X
Science - Exemplar Problems

Chapter_Light – Reflection and Refraction

1

Answers

2015-05-31T17:17:18+05:30
Power of lens is a kind of ability to light .The unit is Dioptre
0