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Wave Motion explains the propagation of energy through mechanical and electromagnetic waves. It includes wave properties such as wavelength, frequency, amplitude and wave speed. Practice these MCQs to strengthen your preparation for UPSC, SSC, Railway and other competitive examinations.
In a Sitar, which type of sound vibrations are produced?
Correct Answer:
(D)
Stationary and Transverse
When we pluck the string of an instrument, like the Sitar, the sound that we hear is not only that of the string. The whole instrument is forced to vibrate, and it is the sound of the vibration of the instrument that we hear. When a string under tension is set into vibration, a transverse wave travels along the wire and is reflected at the fixed end. A transverse stationary wave is thus formed.
Ques: 2
Assertion (A) : Radio waves bend in a magnetic field.
Reason (R) : Radio waves are electromagnetic in nature.
Code:
(A) and (R) are true, and (R) is the correct explanation of
(A).
Correct Answer:
(D)
is false, but (R) is true.
Assertion (A) is false but reason (R) is correct because radio waves are electromagnetic in nature. So, they are generally unaffected by magnetic and electric field.