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+1 vote
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in Physics by (48.9k points)

A spherometer is used to measure 

(1) Radius of curvature of a lens 

(2) Length of rod 

(3) Density of a solid 

(4) Viscosity of a liquid

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1 Answer

+1 vote
by (47.8k points)

(1) Radius of curvature of a lens 

A spherometer is an instrument used for precise measurement of the radius of curvature of curved surface.

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