SI unit of power of a lens is

diopter

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

meter

No worries! We‘ve got your back. Try BYJU‘S free classes today!

watt

No worries! We‘ve got your back. Try BYJU‘S free classes today!

none

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A
diopter

The reciprocal of the focal length is used to calculate a lens' power.
The diopter is the unit of measurement for lens power (D).
Incorrect options
B-The SI unit of length is the meter (symbol m).
C-The watt (W) is the SI unit of power.
Hence, the correct answer is A i.e. diopter.

Suggest Corrections

Similar questions

what is SI Unit of Power of Lens ?

What is meant by the power of lens? Define its SI unit.

in what si unit is the power of kens stated? a convex lens has a focal length of 50cm. calculate the power of the lens.

40

- 20

Join BYJU'S Learning Program