As per Faraday's laws of electromagnetic induction, an e.m.f is induced in a conductor whenever 

Photometer is used to measure

Using the circuit above, at resonance 

Find the amount of current required to deposit 0.02kg of metal in a given electrolysis for 120 seconds. [electro chemical equivalent of the metal = 1.3 x 10\(^{-7}\)kgC\(^{-1}\)]

The acceleration of a free fall due to gravity is not a constant everywhere on the Earth's surface because