(English Medium) ICSE Class 10 - CISCE Important Questions for Physics

Name the factor that determines Loudness of the sound heard.

Name the factor that determines Quality of the note

Name the factor that determines Pitch of the note.

Give one example of damped vibrations

Name the phenomenon that causes a loud sound when the stem of a vibrating tuning fork is kept pressed on the surface of a table.

A wire of length 80 cm has a frequency of 256 Hz. Calculate the length of a similar wire under similar tension, which will have frequency 1024 Hz

A certain sound has a frequency of 256 hertz and a wavelength of 1.3 m.

1) Calculate the speed with which this sound travels

2) What difference would be felt by a listener between the above sound and another sound traveling at the same speed, but of wavelength 2.6 m?

The ratio of the amplitudes of two waves is 3 : 4. What is the ratio of their loudness?

The ratio of the amplitude of two waves is 3 : 4. What is the ratio of their Frequencies?

State the ways by which the frequency of transverse vibrations of a stretch string can be increased.

Give one reason for Ultrasonic waves use for echo depth sounding purpose.

Why are the Ultrasonic waves are not audible to us?

What is an echo

State two conditions for an echo to take place.

Name the phenomenon involved in tunning a radio set to a particular station.

Define the resonance phenomenon.

What do you understand by the loudness of sound?

In which units is the loudness of sound measured?

Draw a graph between displacement and the time for a body executing free/natural vibrations.

State the safe limit of sound level in terms of decibel for human hearing.