Class : X
Board: ICSE
Chapter: Sound
Subject :Physics
1. What is an echo?
2. Give relation between frequency, velocity and wavelength.
3. Give two differences between free vibrations and damped vibrations?
4. name three factors on which the frequency of vibration of stretched string depends.
5. Why when a troop crosses a suspension bridge, the soldiers are asked to break steps.
Board: ICSE
Chapter: Sound
Subject :Physics
1. What is an echo?
2. Give relation between frequency, velocity and wavelength.
3. Give two differences between free vibrations and damped vibrations?
4. name three factors on which the frequency of vibration of stretched string depends.
5. Why when a troop crosses a suspension bridge, the soldiers are asked to break steps.
6. Why are the stringed instruments provided with a sound box?
7. Define pitch. Draw wave of different pitches.
8. Differentiate between musical note and a pitch.
9. How is it possible to detect the filling of a bottle under a water tap by hearing the sound at a distance.
10. What is the safe limit of sound level in dB for our ears?
7. Define pitch. Draw wave of different pitches.
8. Differentiate between musical note and a pitch.
9. How is it possible to detect the filling of a bottle under a water tap by hearing the sound at a distance.
10. What is the safe limit of sound level in dB for our ears?
