Archives for 2nd Paper Practical - Page 2

Determination of focal length of a concave Mirror

Concave mirror: A concave mirror diagram showing the focus, focal length, centre of curvature, principal axis, etc. A concave mirror, or converging mirror, has a reflecting surface that bulges inward (away from the incident light). Concave mirrors reflect light inward to one focal are used to focus light. Unlike convex mirrors, concave mirrors show different…
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Comparison of e.m.f. of two cells by Potentiometer

A potentiometer measuring instrument is essentially a voltage divider used for measuring electric potential (voltage); the component is an implementation of the same principle, hence its name. Potentiometers are commonly used to control electrical devices such as volume controls on audio equipment. Potentiometers operated by a mechanism can be used as position transducers, for example,…
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