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If alpha, beta, and gamma rays carry the same momentum, which has the longest wavelength?(a) Alpha rays(b) Beta rays(c) Gamma rays(d) All have the same wavelengthI had been asked this question in exam.My question comes from Atomic Masses and Composition of Nucleus topic in chapter Nucleus of Physics – Class 12

Answer»

Correct answer is (d) All have the same WAVELENGTH

The explanation: Wavelength of DE Broglie waves is GIVEN as:

λ = \(\frac {h}{p}\).

As momentum is the same for all RAYS, all have the same wavelength λ.



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