Q.11)-Sound cannot pass through
  • Water
  • Steel
  • Air
  • Vaccum
Q.12)-In which of the following speed of sound is maximum?
  • Steel
  • Air
  • Vaccum
  • Water
Q.13)-In which of the following medium speed of sound will be comparatively high?
  • Carbon dioxide
  • Iron rod
  • Steam
  • Water
Q.14)-Pitch of a sound depends upon its
  • Frequency
  • Intensity
  • Velocity
  • Amplitude
Q.15)-Which of the following character of sound wave change with the change in temperature in atmosphere.
  • Frequency
  • Amplitude
  • Wavelength
  • Intensity
Q.16)-Which phenomenon do bat or dolphins used to find prey, preators or obstacles?
  • Refraction of sound
  • Formation of beats
  • Scattering of sound
  • Echolocation
Q.17)-When a vibrating tuning fork is placed on table, a loud sound is heard. This is due to
  • Reflection
  • Refraction
  • Forced vibration
  • Damped vibration
Q.18)-Sound waves do not exhibit the phenomenon of
  • Interference
  • Diffraction
  • Refraction
  • Polarisation
Q.19)-Sound waves cannot be polarised because they
  • Require a material medium for propagation
  • Are longitudinal
  • Are tranverse
  • Have low velocity
Q.20)-The velocity of sound in a gas depends on
  • Wavelength only
  • Density and elasticity of gas
  • Intenstiy only
  • Amplitude and frequency