Physics Questions And Answers :: Photoelectric Effect: part1

Basic Science : Photoelectric Effect QUESTIONS AND ANSWERS :: part1 : 1 to 5

Following Basic Science multiple choice objective type questions and answers will help you in many types of 2014 job and other entrance examinations :

1.The cut-off potential is a function of

the frequency of incident light
the intensity of incident light
the angle of incidence of incident light
the nature of photosensitive substance used

2.Photo electric emission confirms

dual nature of radiation
corpuscular nature of radiation
wave nature of radiation
electromagnetic nature of radiation

3.Which of the following statement is incorrect

Photoelectric emission does not occur below the threshold frequency
The photoelectric current increases with the frequency of incident light
Threshold frequency does not depend on the metal used
The emission of photoelectrons is an instantaneous process

4.The phenomenon of photoelectric effect is

adiabatic process
instantaneous process
isothermal process
spontaneous process

5.The frequency of photon having an energy of 26.52 e V is

64  1015 Hz
6.4  1016 Hz
6.4  1015 Hz
64  1016 Hz

More Photoelectric Effect QUESTIONS AND ANSWERS available in next pages

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