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The photoelectric effect supports the quantum nature of the light because
 

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Important Questions on Electrons and Photons

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Physics Crash Course MHT-CET>Chapter 22 - Electrons and Photons>Exercise 1>Q 4
A surface ejects electrons when illuminated by blue light but none with green light. Then, photoemission is possible by the light of which of the following colours?
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Physics Crash Course MHT-CET>Chapter 22 - Electrons and Photons>Exercise 1>Q 5
In photoelectric effect, the electrons are ejected from metals if the incident light has a certain minimum
 
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Physics Crash Course MHT-CET>Chapter 22 - Electrons and Photons>Exercise 1>Q 6
The photoelectric effect is described as the ejection of electrons from the surface of a metal, when
 
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Physics Crash Course MHT-CET>Chapter 22 - Electrons and Photons>Exercise 1>Q 7
The minimum energy required to eject an electron from the metal surface is called
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Physics Crash Course MHT-CET>Chapter 22 - Electrons and Photons>Exercise 1>Q 8
In photoelectric emission, radiation consists of
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Physics Crash Course MHT-CET>Chapter 22 - Electrons and Photons>Exercise 1>Q 10

Assertion: Alkali metals are most suitable for photoelectric effect.

Reason: The work function of alkali metals is small, so even the radiations of small energy are able to cause the photoelectric effect.

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Physics Crash Course MHT-CET>Chapter 22 - Electrons and Photons>Exercise 1>Q 11
Threshold wavelength for a metal having work functionW0 is λ. What is the threshold wavelength for the metal having work function 2W0 ?
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Physics Crash Course MHT-CET>Chapter 22 - Electrons and Photons>Exercise 1>Q 12
Photoelectric cell is also called as