Physics Past Questions and Answers

An object placed at the bottom of a well full of clear water appears closer to the surface due to?

In the microscope, the eyepiece lens merely acts as?

An observer with normal eyes views an object with magnifying glass of focal length 5 cm. the angular magnification is?
[least distance of distinct vision D = 25 cm]

A short chain is sometimes attached to the back of a petrol tanker to?

An electric generator has e.m.f. of 240 V and an internal resistance of 1Ω if the current supplied by the generatoris 20A when the terminal voltage is 220 V, find the ratio of the power supplied to the power dissipated?