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Calculate how much heat energy is required to raise the temperature of a cube of copper of side 2cm. from 300 to 320k. given: density=8933kg/m cube , atomic weight=63.55, cp=24j/k/
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A radiation of 500nm is incident on a metal surface whose work function is 3ev.why do we not observe the phenomenon of photoelectric effect? Ans) Because the energy of radiation i
(i) It has of continuously varying wavelengths in a exact wavelength range. (ii) It is given by solids, liquids and highly compressed gases heated to high temperature. (iii)
EXAMPLES: (i) When the book is lying on a table, it exerts a downward force on the table (because of its weight). This force is known as action. The table exerts an upward forc
Explain about the piezoelectric effect. Piezoelectric effect: While crystals as quartz or tourmaline are stressed beside any pair of opposite faces, electric charges of oppo
Transverse Waves: The traveling waves in which particles of the elastic medium vibrate about perpendicular to the direction of propagation of waves are known as transverse wave
Given below are two electric circuits A and B Measure the ratio of power factor of the circuit B to the power factor of circuit A.
The resistances of commercially-available discrete resistors are restricted to particular sets. For example, the available values of resistors with 10% tolerance are selections fro
compare the contributions of faraday and oersted to electromagnetic theory
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