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Physics CBSE Live product
Class 10
Light reflection and refraction
Image formation of lens
9.
TBQ - Power of lens
Question:
3
m.
Define power of a lens.
Dioptre is the SI unit of
radius of curvature
power of lens
focal length
and it is denoted by the letter
C
F
D
P
.
The power of a lens is the measure of its ability to
converge light
converge or diverge light
diverge light
power of lens
whose
radius of curvature
focal length
power of lens
is \(1\ metre\).
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