Question

Read the assertion and reason carefully to mark the correct option out of the options given below:
Assertion :The electromagnetic waves of shorter wavelength can travel longer distances on earth's surface than those of longer wavelengths.
Reason : Shorter the wavelength, the larger is the velocity of wave propagation.

• A. Both assertion and reason are true and the reason is the correct explanation of the assertion.
• B. Both assertion and reason are true but reason is not the correct explanation of the assertion.
• C. Assertion is true but reason is false.
• D. The assertion and reason both are false.

Answer 1

The correct option is C Assertion is true but reason is false.

The electromagnetic waves of shorter wavelength do not suffer much diffraction from the obstacles of earth's atmosphere so they can travel long distance.

Also, shorter the wavelength, shorter is the velocity of wave propagation.