EASY
12th Rajasthan Board
IMPORTANT
Earn 100

For light having frequency more than threshold frequency the number of electrons emitted in photo-electric effect experiment is proportional to
(a)Their Kinetic energy
(b)Their potential energy
(c)Frequency of incident light
(d)The number of photons incident on the metal

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Important Questions on Dual Nature of Radiation and Matter
EASY
12th Rajasthan Board
IMPORTANT
The idea of the quantum nature of light has emerged in an attempt to explain

EASY
12th Rajasthan Board
IMPORTANT
Pick out the correct form of the Einstein photoelectric equation.

EASY
12th Rajasthan Board
IMPORTANT
Which property of electrons associated with waves was demonstrated by Davisson and Germer experiment?

EASY
12th Rajasthan Board
IMPORTANT
In Hertz's experiment for electromagnetic waves the cause for emission of negatively charged particles is _____ light falling on metal surface.

MEDIUM
12th Rajasthan Board
IMPORTANT
The threshold wavelength of a photocathode to emit photoelectron is . The average KE of the photoelectron is _____, when a radiation of wavelength is incident upon it.

EASY
12th Rajasthan Board
IMPORTANT
_____ emission is known as quick electron emissions.

EASY
12th Rajasthan Board
IMPORTANT
Thermionic emissions are related to the _____.
