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प्रश्न
What is meant by 'reflection of sound' ? What type of surfaces are the best for reflecting sound ?
उत्तर
The bouncing back of sound when it strikes a hard surface is called reflection of sound. The reflecting surface should be hard and large for sound to reflect from it.
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संबंधित प्रश्न
What is meant by an echo?
Name three devices which work on the reflection of sound.
Name the device which is used to address a small gathering of people.
Why do we hear more clearly in a room with curtains than in a room without curtains ?
State the laws of reflection of sound.
A man is kidnapped, blindfolded and imprisoned in a big room. How could the man tell if he was in : a furnished room
Answer the following question in your own words.
Study the construction of the Golghumat at Vijapur and discuss the reasons for the multiple echoes produced there.
State two conditions necessary for hearing an echo.
______ allows bats to navigate through dark caves and find insects for food.
Assertion: The sound which we hear again is called Echo.
Reason: The sensation of sound (Echo) persists in our brain for about 1 s.
