Which of the following is true as regards photo emission?...
Which of the following is true as regards photo emission?
Velocity of emitted electrons is dependent on light intensity
Rate of photo emission is inversely proportional to light intensity
Maximum velocity of electron increases with decreasing wave length
Both holes and electrons are produced
Correct answer is C
As wavelength decreases, frequency increases and maximum velocity of electron increases.
A particular green LED emits light of wavelength 5490, Å, the energy bandgap of the semiconduc...
The word enhancement mode is associated with ...
When a voltage is applied to a semiconductor crystal, then the free electrons will flow ...
At very high temperatures, the extrinsic semi conductors become intrinsic because ...
Work function of oxide coated cathode is much lower than that of tungsten cathode. ...
In the circuit above, the function of resistor R and diode D are ...
Assertion (A): A p-n junction has high resistance in reverse direction. Reason (R): When a revers...