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An electric field is acting vertically u...

An electric field is acting vertically upwards . A particle of mass 1 mg and charge `-1 mu C` is projected with a velocity `20m//s` at an angle `45^(@)` with the horizontal . Its horizontal range is 10 m, then the intensity of electric field is `(g= 10 m//s^(2))`

A

20, 000 N/C

B

10,000 N/C

C

40,000 N/C

D

90,000N/C

Text Solution

Verified by Experts

The correct Answer is:
C
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