Class 7 Science MCQs - Chapter 24

Sound Waves Quiz Questions and Answers PDF - 15

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Sound Waves Questions & Answers PDF Download: MCQ Quiz 15

MCQ 71: Tiny lumps of solid matter grew in kidney are known as

kidney larva
kidney stone
kidney salts
urea stone

MCQ 72: A device for viewing oscillations by a display on the screen of a cathode ray tube is called

telescope
microscope
oscilloscope
stethoscope

MCQ 73: Sound is carried to our ears through

pressure
vibrations
temperature effect
humidity effect

MCQ 74: Light travels

slow than sound
fast than sound
at the same speed as of sound
at different speed as of sound

MCQ 75: One of the three things that affects the sound produced by vibration of string is

weight of string
length of string
distance between two strings
material of string

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