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Dual Nature of Radiation and Matter — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsDual Nature of Radiation and Matter1 Mark
MCQ
Two photons having:
  • A
    Equal wavelengths have equal linear momenta.
  • B
    Equal energies have equal linear momenta.
  • C
    Equal frequencies have equal linear momenta.
  • D
    Equal linear momenta have equal wavelengths.
✓

Answer

  1. Equal linear momenta have equal wavelengths.

Explanation:

Two photons having equal linear momenta have equal wavelengths is correct. As in the rest of the options magnitude of momentum or energy can be same because energy and momentum are inversely proportional to wavelength. But the direction of propagation of the photons can be different.

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