Class 7 Science MCQs - Chapter 24
Sound Waves Quiz Questions and Answers PDF - 31
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Sound Waves Questions & Answers PDF Download: MCQ Quiz 31
MCQ 151: The medical use of ultrasound is to detect
- baby
- cancer cells
- infected parts of the body
- damaged organs
MCQ 152: The exact speed of sound depends upon
- pressure
- temperature
- density
- mass
MCQ 153: The wave with compressions and rarefactions is known as
- transverse waves
- longitudinal waves
- latitudinal waves
- horizontal waves
MCQ 154: Ships use echolocation to measure the
- size of fish
- density of water
- depth of water
- area of ocean
MCQ 155: An example of 'percussion' is
- flute
- piano
- drum
- saxophone
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Sound Waves MCQ Book Questions
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- When we inhale
- As compare to ionic compounds, covalent bond has
- "Thermos" was invented by a