Sudarshan Asked a Question
April 10, 2020 12:33 pmpts 30 pts
An electron and a positron at rest annihilate each other and two -ray photons are emitted. The wavelength of the y-rays is given by (A) 2.4 Å (B) 0.048 Å (C) 24.0 A (D) 0.024 Å
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  • Abhishek singh
    Option D is correct.
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  • Vaishnavi rajora
    energy of e is 0.511 mev .then we solve it.
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  • Ruby negi Best Answer
    solution.. remember that electron and positron has same rest Mass energy..
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  • Ruby negi
    option d is correct.
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