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Physics
A plano-convex lens of unknown material and unknown focal length is given. With the help of a spherometer we can measure the
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Q. A plano-convex lens of unknown material and unknown focal length is given. With the help of a spherometer we can measure the
NEET
NEET 2020
Ray Optics and Optical Instruments
A
focal length of the lens
19%
B
radius of curvature of the curved surface
62%
C
aperture of the lens
14%
D
refractive index of the material
5%
Solution:
Spherometer $\to$ used to measure radius of curvature of the curved surface