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An electron is moving with an initial ve...

An electron is moving with an initial velocity `vecv=vecv_(0) hati` and is in a uniform magnetic field `vecB=B_(0) hatj`.
Then its de Broglie wavelength

A

decreases with time

B

remains constant

C

increase and decreases periodically

D

increases with time.

Text Solution

Verified by Experts

The correct Answer is:
B
(b): de Broglie wavelength, `lamda = h/(mv)`
The electron will have circular path with velocity of uniform magnitude so de Broglie wavelength will be constant.
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