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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 \(1\ dioptre\) of power of a lens.
Dioptre is the SI unit of
focal length
power of lens
radius of curvature
and it is denoted by the letter
F
P
D
C
.
\(1\ dioptre\) can be defined as the
converge light
power of lens
converge or diverge light
diverge light
whose
power of lens
focal length
radius of curvature
is \(1\ metre\).
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