Physics, asked by akashswathi1, 9 months ago

Power of the lens is -40, its focal length is

Answers

Answered by ayushafre

4

Answer:

2.5mm

Explanation:

p = 1 / f

-40 = 1/f

f=-1/40

f=-0.0025m

f= 2.5mm

Previous Question

Next Question

Similar questions

Physics, 4 months ago

[Ans:- 8 Calculate the speed of a satellite in an orbit at a height of 1000 km from the earth surfac. M=5.98x10 power 24 R = 6.4× 10 power 6 ...

English, 4 months ago

Why is the pulley by George Herbert classified as a subtle shape poem?

Math, 4 months ago

Rewrite in standard form or notation. rewrite in standard form or notaion 4'5 = __256____ 2'9= _______ 14'2=______ NO SPAMMING PLEASE...

Hindi, 9 months ago

I want in hindi 15 lines narendra Modi is my role model...

Social Sciences, 9 months ago

What are the famous places in firozabad district of Uttar Pradesh ? Tell fast .......... Only 7 with its explination why it is famous for ????????

English, 1 year ago

Name the organisation which has reported that India & China tops a list of nations for illegal sand mining?

Math, 1 year ago

The age of the ramesh is twice the sum of the ages of his two daughters.after 20 years,his age will be equal to the sum of the ages of his daughters.find the age of the ramesh.

Math, 1 year ago

alpha and 1/alpha are zeroes of polynomial 4x square -2x+k+7.find the value of k?