Class 12PhysicsDual Nature of Radiation and MatterPhotoelectric Effect by Lenard and it's Observations
EasyThe work function of a metal is defined as:
- AThe maximum possible energy acquired by an electron.
- BEqual for all metals.
- CThe minimum energy required by an electron to just eject from the metal surface.
- DThe maximum energy given to an electron to move out of the metal surface.
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Similar Questions
Give an outline of the experimental study of the photoelectric effect.
Light of frequency two times the threshold frequency is incident on a photosensitive material. If the incident frequency is made $\left(\frac{1}{3}\right)^{rd}$ and intensity is doubled,then the photoelectric current will
The work functions of Caesium $(Cs)$, Potassium $(K)$, and Sodium $(Na)$ are $2.14 \ eV$, $2.30 \ eV$, and $2.75 \ eV$ respectively. If incident electromagnetic radiation has an incident energy of $2.41 \ eV$, which of these photosensitive surfaces may emit photoelectrons?
"With increase in frequency of light incident, number of electrons emitted increase" - True or false?
Medium
View SolutionWhen the intensity of incident light increases:
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