Free gk questions Online Test - MeritNotes

No. of Questions :10
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1. The absorption of radio waves by the atmosphere depends on
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 

2. A transistor is made of
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 

3. Modem is a device used for
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 

4. In a transistor the emitter current is
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 

5. A hole in p-type semiconductor is
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 

6. The technique of collecting information about an object from a distance without making physical contact with it is
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 

7. When the temperature of semiconductor is increased, its electrical conductivity
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 

8. The reciprocal of specific resistance is
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 

9. Modern communication systems use
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 

10. In black and white televisions, pictures on the screen are produced due to bombardment of
 
  • (a) 
  • (b) 
  • (c) 
  • (d)