A simple pendulum with charged bob is oscillating with time period T and let θ be the angular displacement. If the uniform magnetic field is switched ON in a direction perpendicular to the plane of oscillation then-
A. time period will decrease but θ will remain constant
B. time period remain constant but θ will decrease
C. both T and θ will remain the same
D. both T and θ will decrease
Answer:C
A simple pendulum with charged bob is oscillating with time period T and let θ be the angular displacement. If the uniform magnetic field is switched ON in a direction perpendicular to the plane of oscillation then-
A. time period will decrease but θ will remain constant B. time period remain constant but θ will decrease C. both T and θ will remain the same D. both T and θ will decrease