Question

A proton and an electron travelling along parallel paths enter a region of uniform magnetic field,acting perpendicular to their path.Which of them will move in a circular path with higher frequency?​

Answer 1

Answer:

When a charge particle enters a region of uniform magnetic field, perpendicular to their paths, they move in a circular path.

And the time period of their motion is given by

T=

qB

2πm

But, f=

T

1

f=

2πm

qB

Since B and q is same for electron and proton,

so f∝

m

1

Since mass of electron is smaller than that of proton, hence it will have higher frequency.

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