Which of the following is not electromagnetic wave in nature

Options :
  1. infrared rays
  2. ultraviolet rays
  3. radar waves
  4. sound waves

Answer and Explanation :-

Answer: Option 4


Electromagnetic wave does not require medium.

How do you rate this queston?  Very Easy  Easy  Average  Above Average  Tough

Previous Question : Non reflecting glass owe its property to

Next Question : The velocity of light in diamond, glass and water decreases in the following order

Click here for free online test on Optical Physics


 (Getemail alerts when others member replies)

Nearly' only counts in horseshoes and hand-grenades.
-Neil Gaiman The Graveyard Book