Physics-
General
Easy

Question

Frequency ranges for micro waves are :

  1. 3 cross times 10 to the power of 9 end exponent text  to  end text 3 cross times 10 to the power of 4 end exponent H z    
  2. 3 cross times 10 to the power of 13 end exponent text  to  end text 3 cross times 10 to the power of 9 end exponent H z    
  3. 3 cross times 10 to the power of 14 end exponent text  to  end text 3 cross times 10 to the power of 9 end exponent H z    
  4. 3 cross times 10 to the power of 11 end exponent text  to  end text 3 cross times 10 to the power of 9 end exponent H z    

The correct answer is: 3 cross times 10 to the power of 13 end exponent text  to  end text 3 cross times 10 to the power of 9 end exponent H z

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