JEE PHYSICS UNIT 15
QUIZ NO 4
TOTAL QUESTIONS = 20


1. Electromagnetic waves are produced by:


2. Which of the following is not a property of electromagnetic waves?


3. The speed of electromagnetic waves in a vacuum is approximately:


4. In an electromagnetic wave, the electric and magnetic fields are:


5. The wavelength range of visible light is approximately:


6. Radio waves are used for:


7. Which of the following electromagnetic waves has the longest wavelength?


8. Gamma rays have a very high:


9. Infrared waves are also known as:


10. Ultraviolet radiation is used for:


11. The energy of electromagnetic waves is carried by:


12. Electromagnetic waves are:


13. Which of the following waves is not part of the electromagnetic spectrum?


14. The displacement current is proportional to the:


15. Which electromagnetic waves are used for satellite communication?


16. Electromagnetic waves differ in their:


17. X-rays are produced when:


18. The speed of electromagnetic waves in a medium depends on its:


19. Electromagnetic waves transfer:


20. The Poynting vector represents:



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