IIT JEE Questions And Answers :: Electrons And Dual Nature Of Matter And Radiations: part1



IIT JEE : Electrons And Dual Nature Of Matter And Radiations QUESTIONS AND ANSWERS :: part1 : 1 to 5

Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :

1.Three particles having their charges in the ratio of 1 : 3 : 5 produce the same spot on the screen in Thomson experiment. Their masses are in the ratio of
5 : 3 : 1
3 : 1 : 5
1 : 3 : 5
5 : 1 : 3

2.At stopping potential
K.E. = 0
P.E. = 0
K.E. = P.E
K.E. + P.E. = 0

3.If the momentum of a particle is doubled, then wavelength associated with particle will be
remains unchanged
half
double
None of these

4.If frequency of the wave emitted from a radio stations is 6 MHz. Then wavelength of waves will be
12 m
24 m
50 m
6 m

5.Photons of energy 5.0 eV fall on a metal surface whose work function is 2.0 eV. Then
most energetic electron will have kinetic energy equal to 5.0 eV
all photoelectrons will have same energy of 2.0 eV
kinetic energy of most energetic electron will be 2.0 eV
kinetic energy of most energetic electron will be 3.0 eV

More Electrons And Dual Nature Of Matter And Radiations QUESTIONS AND ANSWERS available in next pages

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