two particles have same specific charge q/r.ther enter the magnetic field wth angles 30 and 60 deg..let A,B,C be the ratios of their pitch ,radii,and time period thn whc is true

1.A+B=2*ROOT OF C

2.ABC=1

3.A square=C

4.AB=C

A=ratio of pitch of two particles...

pitch is directly proportional to vcos@

A=cospi/6 /cospi/3=3^1/2

B = ratio of radius

radius is directly proportional to perpendicular componenet of velocity..

B=sinpi/6/sinpi/3=1/3^1/2

C=ratio of time period

time period is independent of velocity so the ratio is 1 ..

C=1

ABC==1 & AB=1

hence option 2 & 4 are correct...