There is a uniform electric field of strength 
along y-axis. A body of mass 1g and charge 10 –6 C is projected into the field from origin along the positive x-axis with a velocity 10m/s. Its speed in m/s after 10s is (Neglect gravitation)
A
10
B
C
D
20
Text Solution
Verified by ExpertsThe correct answer is:
C
Body moves along the parabolic path.
For vertical motion : By using v = u + at
⇒ ⇒ 
For horizontal motion – It’s horizontal velocity remains the same i.e. after 10 sec, horizontal velocity of body v x = 10 m/sec.
Velocity after 10 sec 
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