If alpha, beta, and gamma rays carry the same momentum, which has the longest wavelength?
Correct answer: D. All have same wavelength
- A. Alpha rays
- B. Beta rays
- C. Gamma rays
- D. All have same wavelength
Explanation
Option D is correct since wavelength and momentum are related to each other via De Broglie's equation : p = h/lambda. As the momentum of the three rays is the same, the wavelength will also be the same because "h" is a constant, known as Planck's constant.Option A is incorrect since it includes only alpha rays.Option B is incorrect since it includes only beta rays.Option C is incorrect since it includes only gamma rays.
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