Free tnpsc model questions Online Test - MeritNotes

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1. Which one of the following is not electromagnetic in nature?
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
2. The ozone layer absorbs
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
3. The Doppler’s effect is applicable for
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
4. Who firstly predicated the existence of electromagnetic waves?
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
5. X-rays are steams of
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
6. The product of the time period of wave and its frequency is
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
7. Mechanical waves
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
8. Which are the relevant waves in telecommunication?
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
9. Out of the following, which frequency is not clearly audible to the human ear?
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
10. SONAR is based on the principle of
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
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