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PhysicsJEE Main 23 Jan 2026, Shift 1·Q5·MCQ·Easy–moderate

Dual Nature of Radiation and Matter · Matter waves

The de Broglie wavelength of an oxygen molecule at 27∘27^\circC is x×10−12x\times10^{-12} m. The value of xx is (take Planck's constant =6.63×10−34= 6.63\times10^{-34} J.s, Boltzmann constant =1.38×10−23= 1.38\times10^{-23} J/K, mass of oxygen molecule =5.31×10−26= 5.31\times10^{-26} kg).
  1. (1)26
  2. (2)24
  3. (3)30
  4. (4)20
We corrected a printing error in the original paper

Source printed “mass of oxygen. Molecule”.

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