Sounds waves and Motion MCQ question and answer with solution

Section 1 Section 2 Section 3 Section 4

41.
Echoes may be heard more than once due to successive or multiple:

A. rarefaction

B. reflection

C. diffraction

D. refraction

A. Henri Becquerel

B. Wilhelm Rontgen

C. Isaac Newton

D. Guglielmo Marconi

A. Both the statements are true and statement II is the correct explanation of statement I

B. Both the statements are true, but statement II is not the correct explanation of statement I

C. Statement I is true, but statement II is false

D. Statement I is false, but statement II is true

A. The speed of sound waves in a medium depends upon the elastic property of the medium, but not on an inertia property

B. The speed of sound waves in a medium depends upon the inertia property of the medium, but not on an elastic property

C. The speed of sound waves in a medium depends neither on its elastic property nor on its inertia property

D. The speed of sound waves in a medium depends on both elastic and inertia properties of themedium

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