Electronic Devices and Circuits

Q1: Which of the following is true as regards photo emission?

A Velocity of emitted electrons is dependent on light intensity

B Rate of photo emission is inversely proportional to light intensity

C Maximum velocity of electron increases with decreasing wave length

D Both holes and electrons are produced

ANS:C - Maximum velocity of electron increases with decreasing wave length

As wavelength decreases, frequency increases and maximum velocity of electron increases.



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