preparation pr lagao char chand

• E (+x) and B (+z)

• E (+y) and B (-z)

• E (+y) and B (+z)

• E (+x) and B (-z)

• 6 V

• 54 V

• 36 V

• 24 V

A particle is projected at angle 53 degree from horizontal with speed of 20 m/s. find it's radius of curvature at a point where it making angle 37 degree from horizontal.

• 125/4 m

• 125/8

• 225/8

• none of these

• 25 N

• 55 N

• 85 N

• none of these

A carrier wave frequency of an AM radio station is 1000 Khz and it's modulation frequency is 5 % of it. if another AM station you need to license then what frequency you will allot?

• 1050 khz

• 925 khz

• 1100 khz

• 950

A rod of length L has total charge Q is uniformly distributed over it. calculate the electric field at a point p that is located along axis of rod at a distance L from it's one end.

• KQ/2L²

• 4KQ/9L²

• KQ/L²

• KQ/8L²

• 72 KV

• 60 KV

• 50 KV

• 20 KV

A particle is performing SHM, if it's velocity get doubled when it is at equilibrium position then it's time period will be changed by

• one half

• one fourth

• doubled

• same