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A small block of mass m, having charge q...

A small block of mass m, having charge q, is placed on a frictionless inclined plane making an angle `theta` with the horizontal. There exists a uniform magnetic field B parallel to the inclined plane but perpendicular to the length of spring. If m is slightly pulled on the incline in downward direction, the time period of oscillation will be (assume that the block does not leave contact with the plane)

A

`2pisqrt(m/K)`

B

`2pisqrt((2m)/K)`

C

`2pisqrt((qB)/K)`

D

`2pisqrt((qB)/(2K))`

Text Solution

Verified by Experts

The correct Answer is:
A
There will be no effect of magnetic force on time period
because the magnetic force will be perpendicular to the
inclined plane.
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