CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Lens Formula and Magnification

Why we use mi...

Question

Why we use minus sign in the formula of magnification of mirror?

m= -v/u

Open in App

Solution

a negative sign is used on the linear magnification equation as a reminder that all real images are inverted. If the image is virtual, the image distance will be negative, and the magnification will therefore be positive for the erect image.

Suggest Corrections

thumbs-up

36

Similar questions

Q. Fill in the following blanks with suitable words:

(a) If the magnification has a plus sign, than image is ......... and.........
(b) If the magnification has a minus sign, than the image is ......... and .......

why is magnification in terms of mirrors -v/u whereas in lenses it is v/u ?

Q. The magnification of a lens is given by
(v = Image distance and u = Object distance as per sign convention)

Q. I want to know the reason that why we shuffle the minus sign from the denominator to the numerator

What is the formula for linear magnification for lens?

v = Image distance

u = Object distance

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Lens Formula, Magnification and Power of Lens

PHYSICS

Watch in App

explore_more_icon

Explore more

Lens Formula and Magnification

Standard X Physics

Join BYJU'S Learning Program

CrossIcon