Class XI

The SI unit of wavelength is
  1. metre(b) s-1
  2. metre/second
  3. Hertz
  4. s-1
What type of sound waves can propagate in solids ?
  1. Longitudinal only
  2. Transverse only
  3. Either longitudinal or transverse
  4. Either longitudinal or transverse
A medium transmits a sound wave by virtue of its?
  1. elasticity
  2. inertia
  3. density
  4. both inertia and elasticity
Propagation of wave transfers:
  1. energy only
  2. both energy and matter
  3. matter only
  4. none of these
The quantity 1/λ is known as
  1. wave velocity
  2. frequency
  3. wavelength
  4. wave number
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