Optics

The power of mirror is. Give me the formula is it 1/f or 1/f please do tell as confused by the two types of mirrors.

@raja
The power of the mirror is always
P = 1/f
Now, you can put the sign of f accordingly.

@sarthakbasak said in Optics:
@raja
The power of the mirror is always
P = 1/f
Now, you can put the sign of f accordingly.
Is that true for lens too

@raja that's the good question.
Yes, obviously it is true for any lens.
The formula P=1/f will work. Here also put the value of f with the sign.