Q. 67 A4.6( 21 Votes )
What differences will you hear in a sound if there is an increase in
(i) amplitude, and (ii) frequency?
(i) The sound will become loud on increasing the amplitude.
(ii) The sound will become shrill on increasing the frequency.
Rate this question :
We have learnt that vibration is necessary for producing sound. Explain why the sound produced by every vibrating body cannot be heard by us?NCERT - Science Exemplar
Name the characteristic of sound which depends on:
(b) frequency.Lakhmir Singh & Manjit Kaur - Science
Lightning can be seen the moment it occurs. Paheli observes lightning in her area. She hears the sound 5 s after she observed lightning. How far is she from the place where lightning occurs?
(speed of sound = 330 m/s).NCERT - Science Exemplar
When we change a feeble sound to a loud sound, we increase its:Lakhmir Singh & Manjit Kaur - Science
Which of the following sound frequencies can be heard by a woman having a normal hearing range?
A) 25000 Hz
C) 40000 Hz
D) 25HzLakhmir Singh & Manjit Kaur - Science
Voice of which of the following is likely to have the minimum frequency?Lakhmir Singh & Manjit Kaur - Science
Define 'frequency' of a vibrating object. Name the unit in which frequency is measured.Lakhmir Singh & Manjit Kaur - Science
What is meant by the 'time-period' of a vibrating object? State its unit.Lakhmir Singh & Manjit Kaur - Science
The ultrasound waves can penetrate into matter to a large extent because they have:Lakhmir Singh & Manjit Kaur - Science