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AP EAMCET202119 Aug 2021Morning ShiftChemistryStructure of AtomActual

If two particles A and B are moving with the same velocity, but wavelength of A is found to be double than that of B . Which of the following statements are correct?

Options

  1. ABoth A and B have same mass
  2. BMass of A is half that of B
  3. CMass of B is half that of A
  4. DMass of B is one-fourth that of A

Correct answer

B. Mass of A is half that of B

Step-by-step solution

So according to the De brogli's we know the relation between momentum and wavelength which is λ   =   h mv If both particle have same velocity but when wavelength of A is found to be double than that of B Then relation between mass of both particle is λ A   =   h m A v A λ B   =   h m B v B λ A   =   2 λ B Thus, relation is mass of A particle is half that of B particle

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