Which of the following cannot travel in vacuum?

A Radio waves
B Gamma Waves
C Infrared Waves
D Infrasonic waves

Correct Answer: Infrasonic waves

Radio waves, gamma waves, and infrared waves are electromagnetic waves and due to this they do not need any material medium to travel and hence, can travel in vacuum. Whereas, infrasonic waves are mechanical waves and so, they need a material medium to travel. Therefore, infrasonic waves cannot travel in vacuum.
Bissoy MCQ
#Class 12 Physics #Electromagnetic Spectrum

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