A particle A of mass m and charge q is accelerated by a potential difference of 50 V . Another particle B of…

A particle A of mass m and charge q is accelerated by a potential difference of 50 V. Another particle B of mass 4m and charge q is accelerated by a potential difference of 2500 V. The ratio of de-Broglie wavelengths λAλB is close to:
  1. 0.07
  2. 10.00
  3. 4.47
  4. 14.14

Solution

de-Broglie wavelength λ=hρ

=h2meV

λAλB=4m×2500m×50

=2×52

=14.14

Asked in: JEE Main 2019 (12 Jan Shift 1)

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