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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

`10 N//C`

B

`20 N//C`

C

`30 N//C`

D

`40 N//C`

Text Solution

Verified by Experts

The correct Answer is:
C
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