Basic Science : Photoelectric Effect QUESTIONS AND ANSWERS :: part1 : 11 to 15
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
11.Einstein’s photoelectric equation is |
| hν - hνo = ½ mv2max |
| hνo - hν = ½ mv2max |
| hν = ½ mv2max |
| hν = hνo - ½ mv2max |
12.In photo electric effect, emission of electrons is due to |
| electric field |
| thermal energy |
| electromagnetic radiation |
| applied potential difference |
13.When the frequency of the incident light is less than the threshold frequency |
| a little photoelectric current is produced |
| a large photoelectric current is produced |
| no photoelectric current is produced |
| the velocity of the photoelectrons is large |
14.The threshold wavelength of photoelectric emission of a metal is 4000Å. Then the minimum energy required to eject photo electron is |
| 4.96 e V |
| 3.1 e V |
| 49.6 e V |
| 31 e V |
More Photoelectric Effect QUESTIONS AND ANSWERS available in next pages
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