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PRADEEP-SOUND-(6 b) Formative (Pen Test)
- When a sound wave goes from one medium to another, the quantity that r...
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- Which of the following is the most important factor which helps in rec...
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- The loudness of sound depends on :
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- Pitch of a sound depends on :
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- Of the following, the one which emits sound of higher pitch is :
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- Wavelength of ultrasonic waves in air is of the order of :
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- Will a vibrating source always produce sound ?
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- What is the upper limit of frequency a dog can hear ?
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- Drapery and furniture often improve the acoustics of a room. Explain.
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- An approaching train can be felt by applying ears to rails but through...
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- When we nibble at a rusk, we hear a noise that is simply deafening. Bu...
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- (a) If the distance from the point sound source triples, the sound int...
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- Medical ultrasound uses a frequency of around 20 MHz to diagnose human...
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- (a) After a snowfall, why does it seem particularly quiet ? (b) Why do...
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- State the law which governs the reflection of sound waves ? How can th...
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