A charged ball of mass m and charge q is projected from the ground with an initail velocity u and angle of projection `theta` at the time of projection vertically upward electric field E is switched on. When it reaches the maximum height electric filed is switched off and a horizontal electric feild of same magnitude E is switched on. Then answer the following question (Assume mg> qE) Q In the above experiment
A
horizionatl velocity always remains constant
B
horizontal velocity remains constant for hall of the time and then varies.
C
horizontal velocity when it strikes the grounds is greater than the intial horizontal velocity
D
the initial vertical speed is equal to the final vertical speede.
Text Solution
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The correct Answer is:
C
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