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…
Continue Reading »

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,…
Continue Reading »