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Echo of Sound MCQ with Answers PDF

Echo of sound Multiple Choice Questions (MCQ) to practice echo of sound quiz answers PDF, 10th grade physics worksheets for online degrees. Solve sound Multiple Choice Questions and Answers (MCQs), Echo of Sound quiz questions PDF for online school and college. Echo of Sound MCQ PDF: ultrasound, sound and sound waves, reflection (echo), characteristics of sound test prep for online school and college.

"To communicate with each other, Elephants use" Multiple Choice Questions (MCQ) on echo of sound with choices low frequency sound waves, low frequency light waves, high frequency sound waves, and low frequency heat waves for online school and college. Solve sound quiz questions for online certificate programs for online school courses.

MCQs on Echo of Sound

MCQ: To communicate with each other, Elephants use

low frequency sound waves
low frequency light waves
high frequency sound waves
low frequency heat waves

MCQ: When sound is incident on the surface of a medium it bounces back into the first medium. The phenomenon is called

refraction of sound
deflection of sound
defraction of sound
reflection of sound

MCQ: The total distance covered by the sound from the point of generation to the reflecting surface and back should be at least

30 m
34 m
40 m
38 m

MCQ: For hearing distinct echoes, the minimum distance of the obstacle from the source of sound must be

double to this distance
equal to this distance
half of this distance
one third to this distance

MCQ: Echoes may be heard more than once due to successive or multiple reflections

deflections
defraction
refractions
reflections