A converging lens has a focal length of 5cm. Determine its power

a

+20.0

b

+0.2

c

-20.00

d

-0.2

Download Offline App Ask a Question

Explanation

Correct Option
a

Video Explanation

No video available

Post your Contribution

Share:

Discussions (6)

drdoro
1 year ago

To find the power of a lens in diopters (D), use the formula

P = 1/f,

where is the focal length in meters.

Given:

f = 5cm= 0.05m.

Therefore,

P = 1/0.05m = 20D.

Myschool Paul
10 years ago

The question has been modified. Thanks

The question is wrongly composed:

the parameter given is wrong

nwankwodavid
10 years ago

the parameter given is wrong...it says d focal length is 54cm

Quick Questions

Ask a Question
CO

ceoofwahala

20th June, 2026

Chemistry


2 comments

ASSAAS

20th June, 2026

English Language


5 comments

infinitehoaxx

21st May, 2026

Computer


4 comments