Request a call back

Join NOW to get access to exclusive study material for best results

# CBSE Class 12-science Answered

Hi
Asked by jain.pradeep | 25 Apr, 2019, 01:36: PM
Expert Answer
Let from O particles X and Y are projected horizontally with different speeds at time t =0.

horizontal distance xt  moved by a particle in time t is given by,   xt = u×t  ..................(1)
where u is horizontal projection speed.

since the particlehaving charge q and mass m experiences an upward acceleration (qE/m) due to electric field E,

its vertical distance yt = (1/2) a t2  = (1/2) (qE/m) t2 ................(2)

substituting t from eqn.(1), eqn.(2) is rewritten as,   yt =[  qE / (2 m u2 ) ] xt2  .................(3)

Hence from eqn.(3) we see that, vertical displacement yt  for a given horizontal displacement xt is

(a) directly proportional to charge q,  (b) inversely proportional to mass m  and (c) inversely proportional to square of projection speed.

From the horizontal range shown in figure given in the question, we can realise that projection speed of Y is greater than that of X.

Hence we can conclude  (B) Y has greater mass than X ,  (C) X has greater charge than Y

Answered by Thiyagarajan K | 27 Apr, 2019, 06:48: AM

## Concept Videos

CBSE 12-science - Physics
Asked by goswamideepak16492 | 12 Jun, 2024, 10:18: AM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by trishaktiprasadmallik693 | 11 Jun, 2024, 07:17: AM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by rahuldevgayen4 | 10 Jun, 2024, 02:58: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by yy8965818 | 07 Jun, 2024, 08:36: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by vaidehi262008 | 05 Jun, 2024, 10:09: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by khushiupadhyay336 | 04 Jun, 2024, 08:31: AM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by shafiakazmi1234 | 02 Jun, 2024, 09:45: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by abhimeghrajani25 | 01 Jun, 2024, 05:07: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by nigamayush658 | 01 Jun, 2024, 03:40: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by roopasreeallada14 | 25 May, 2024, 11:06: AM
ANSWERED BY EXPERT