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-- Question text hereAssertion (A): de-Broglie wavelength of an electron accelerated by a potential decreases when voltage increases.Reason (R): Momentum of electron increases with increase in accelerating potential.
A
Both A and R are true and R is correct explanation
B
Both A and R are true but R is not correct explanation
C
A is true, R is false
D
A is false, R is true
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