Tag: sound

Quizzes (27) Questions (116)

Questions Related to sound

Multiple choice physics sound time period, frequency and amplitude of sound amplitude, time period and frequency of a vibration nature and characteristics of sound waves

The pitch of sound increases if its frequency

  1. increases

  2. decreases

  3. remains same

  4. cant say
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The pitch of sound increases if its frequency increases. 
Pitch describes how high or low a tone is and depends upon the rapidity with which a sounding body vibrates, i.e., upon the frequency of vibration. The higher the frequency of vibration, the higher the pitch.

Multiple choice physics sound time period, frequency and amplitude of sound amplitude, time period and frequency of a vibration nature and characteristics of sound waves

Sound wave P has a greater amplitude and a larger wavelength in air than sound wave Q. How do the loudness and pitch of P compare with the loudness and pitch of Q?
How do the loudness and pitch of P compare with the loudness and pitch of Q?

  1. P is louder and higher in pitch than Q

  2. P is louder and lower in pitch than Q

  3. P is quieter and higher in pitch than Q

  4. P is quieter and lower in pitch than Q
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
We know that pitch $\propto$ frequency.
wavelength of P $>$  wavelength of Q
$\implies$ frequency of P $<$ frequency of Q
$\implies $ pitch of P $<$  pitch of Q
now ,
loudness $\propto $ amplitude
So, P has more loudness as compared to Q.
Multiple choice physics sound time period, frequency and amplitude of sound amplitude, time period and frequency of a vibration nature and characteristics of sound waves

The sound produced by an object vibrating with a high frequency is called _____________ .

  1. shrill or high-pitched sound

  2. deep or low-pitched sound

  3. heavy sound

  4. musical sound
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The frequency determines the shrillness or pitch of a sound. If the frequency of vibration is higher, we say that the sound is shrill and has a higher pitch. If the frequency of vibration is lower, then we say that the sound has low pitch.

Multiple choice physics sound time period, frequency and amplitude of sound amplitude, time period and frequency of a vibration nature and characteristics of sound waves

State whether true or false :

Shrill sound is a high-pitch sound and a soft sound is a low-pitch sound.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The vocal cords of women are thicker than men , therefore they produce a shrill sound , which we know has higher frequency or higher pitch , whereas men's voice is grave , means low frequency i.e. lower pitch .

Multiple choice physics sound sound as a wave of disturbance vibrations in a tuning fork vibrations in tuning fork

The frequency of a man's voice is $300\space Hz$. If the velocity of sound waves is $336\space ms^{-1}$, the wavelength of the sound is

  1. $1.12\space m$
  2. $300\times336\space m$
  3. $330/336\space m$

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

We are given, frequency $f=300 Hz$, and velocity $v=336 ms^{-1}$,

From the relation $v=f \times \lambda$,

$\lambda = v/f =336/300=1.12 m$

Option "A" is correct.