English, asked by kainat2626, 6 months ago

a) What is the power of a lens ?
Ans

Answers

Answered by Anonymous

Answer:

The power of a lens is defined as the reciprocal of the focal length. ... Converging (convex ) lenses have positive focal lengths, so they also have positive power values. Diverging (concave ) lenses have negative focal lengths, so they also have negative power values.

Previous Question

Next Question

Similar questions

English, 3 months ago

Read the following dialouge change into indirect speech "show me some new clothes,please" said dharti "Foregin or Indian?"asked the salesman. "both" said dharti "wait a minute ,please"said the salesman.

English, 3 months ago

He received none but common folk ( change into positive degree)...

History, 3 months ago

The history of American expansion followed a clear pattern in the late 1700s and early 1800s. Using what you learned in this lesson, explain how the expanding territory led to the expanding settlement of the US...

Biology, 6 months ago

odd one out - ovaries epididymis uterus oviduct...

Math, 6 months ago