172729 Sound waves of wavelength and velocity $v$ in medium-1 enter medium-2. If their velocity in medium- 2 is $4 v$, the wavelength in medium- 2 is

172730 Maximum displacement of a particle of a medium when a sound wave of frequency 300 $\mathrm{Hz}$ passes through it is $0.1 \mathrm{~cm}$. The maximum velocity of the particle is

172731 The velocity of sound in air at NTP is $330 \mathrm{~m}$. $\mathrm{s}^{-}$ 1. What will be its value when temperature is doubled and pressure is halved?

172732 On getting reflected at a surface, the intensity of sound is found to be decreased by $20 \%$. If a be a amplitude of the incident sound waves, then the amplitude of reflected sound waves is

172733 Two tuning forks $X$ and $Y$ are of frequencies $280 \mathrm{~Hz}$ and $284 \mathrm{~Hz}$. A third tuning fork $\mathrm{Z}$ is of unknown frequency. When $X$ and $Z$ are sounded together certain beats are heard per second. When $Y$ and $Z$ are sounded together beat frequency is found to be thrice as great. The frequency of $Z$ is

172729 Sound waves of wavelength and velocity $v$ in medium-1 enter medium-2. If their velocity in medium- 2 is $4 v$, the wavelength in medium- 2 is

172730 Maximum displacement of a particle of a medium when a sound wave of frequency 300 $\mathrm{Hz}$ passes through it is $0.1 \mathrm{~cm}$. The maximum velocity of the particle is

172731 The velocity of sound in air at NTP is $330 \mathrm{~m}$. $\mathrm{s}^{-}$ 1. What will be its value when temperature is doubled and pressure is halved?

172732 On getting reflected at a surface, the intensity of sound is found to be decreased by $20 \%$. If a be a amplitude of the incident sound waves, then the amplitude of reflected sound waves is

172733 Two tuning forks $X$ and $Y$ are of frequencies $280 \mathrm{~Hz}$ and $284 \mathrm{~Hz}$. A third tuning fork $\mathrm{Z}$ is of unknown frequency. When $X$ and $Z$ are sounded together certain beats are heard per second. When $Y$ and $Z$ are sounded together beat frequency is found to be thrice as great. The frequency of $Z$ is

172729 Sound waves of wavelength and velocity $v$ in medium-1 enter medium-2. If their velocity in medium- 2 is $4 v$, the wavelength in medium- 2 is

172730 Maximum displacement of a particle of a medium when a sound wave of frequency 300 $\mathrm{Hz}$ passes through it is $0.1 \mathrm{~cm}$. The maximum velocity of the particle is

172731 The velocity of sound in air at NTP is $330 \mathrm{~m}$. $\mathrm{s}^{-}$ 1. What will be its value when temperature is doubled and pressure is halved?

172732 On getting reflected at a surface, the intensity of sound is found to be decreased by $20 \%$. If a be a amplitude of the incident sound waves, then the amplitude of reflected sound waves is

172733 Two tuning forks $X$ and $Y$ are of frequencies $280 \mathrm{~Hz}$ and $284 \mathrm{~Hz}$. A third tuning fork $\mathrm{Z}$ is of unknown frequency. When $X$ and $Z$ are sounded together certain beats are heard per second. When $Y$ and $Z$ are sounded together beat frequency is found to be thrice as great. The frequency of $Z$ is

172729 Sound waves of wavelength and velocity $v$ in medium-1 enter medium-2. If their velocity in medium- 2 is $4 v$, the wavelength in medium- 2 is

172730 Maximum displacement of a particle of a medium when a sound wave of frequency 300 $\mathrm{Hz}$ passes through it is $0.1 \mathrm{~cm}$. The maximum velocity of the particle is

172731 The velocity of sound in air at NTP is $330 \mathrm{~m}$. $\mathrm{s}^{-}$ 1. What will be its value when temperature is doubled and pressure is halved?

172732 On getting reflected at a surface, the intensity of sound is found to be decreased by $20 \%$. If a be a amplitude of the incident sound waves, then the amplitude of reflected sound waves is

172733 Two tuning forks $X$ and $Y$ are of frequencies $280 \mathrm{~Hz}$ and $284 \mathrm{~Hz}$. A third tuning fork $\mathrm{Z}$ is of unknown frequency. When $X$ and $Z$ are sounded together certain beats are heard per second. When $Y$ and $Z$ are sounded together beat frequency is found to be thrice as great. The frequency of $Z$ is

172729 Sound waves of wavelength and velocity $v$ in medium-1 enter medium-2. If their velocity in medium- 2 is $4 v$, the wavelength in medium- 2 is

172730 Maximum displacement of a particle of a medium when a sound wave of frequency 300 $\mathrm{Hz}$ passes through it is $0.1 \mathrm{~cm}$. The maximum velocity of the particle is

172731 The velocity of sound in air at NTP is $330 \mathrm{~m}$. $\mathrm{s}^{-}$ 1. What will be its value when temperature is doubled and pressure is halved?

172732 On getting reflected at a surface, the intensity of sound is found to be decreased by $20 \%$. If a be a amplitude of the incident sound waves, then the amplitude of reflected sound waves is

172733 Two tuning forks $X$ and $Y$ are of frequencies $280 \mathrm{~Hz}$ and $284 \mathrm{~Hz}$. A third tuning fork $\mathrm{Z}$ is of unknown frequency. When $X$ and $Z$ are sounded together certain beats are heard per second. When $Y$ and $Z$ are sounded together beat frequency is found to be thrice as great. The frequency of $Z$ is