Physics Past Questions and Answers

In a thermonuclear reaction, the total initial mass is 5.02 x \(10^{-{2}{7}}\)kg and the total final mass is 5.01 x \(10^{-{2}{7}}\)kg. The energy released in the process is<br/>[c = 3.0 x \(10^8\) ms-1]

A gas would serve as an electrical conductor under

If ∆x is the uncertainty in the measurement of the position of a particle along the x-axis and ∆P<sub style='font-size: smaller;'>a</sub> is the uncertainty in the measurement of the linear momentum along the x-axis, then the uncertainty principle relation is given as

An electric generator with a power output of 3.0KW at a voltage of 1.5KV distributes power along cables of resistance 20.0Ω. The power loss in the cables is

If the frequency of an emitted x-ray is 1.6 x 10<sup style='font-size: smaller;'>16</sup>Hz, the accelerating potential is?<br/>[e = 1.6 x 10<sup style='font-size: smaller;'>-19</sup>C, h = 6.63 x 10<sup style='font-size: smaller;'>-34</sup>Js]