Question

Which of the following has the smallest de-broglie wavelength ? O2 or H2 ( both have same value of velocity)

Answer 1

Answer:O2

Explanation:

As de broglies wavelength=h/MV

As h and v are constant for both gasses and m of O2 is more.

Wavelength is inversely proportional to mass.

Hence O2 has smaller wavelength.

Answer 2

According to the de-Broglie equation λ =h/m×v;

for same value of velocity λ= 1/ m. ∴ O2 Molecule has shortest