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Mathc list I with II and select the corr...

Mathc list I with II and select the correct answer :
`{:((A)"spring constant",(1)M^(1)L^(2)T^(-2)),((B)"pascal",(2)M^(0)L^(0)T^(-1)),((C)"hertz",(3)M^(1)L^(0)T^(-2)),((D)"joule",(4)M^(1)L^(-1)T^(-2)):}`

A

`4hat(i)+3hat(j)`

B

`4hat(i)+8hat(j)`

C

`8hat(i)+4hat(j)`

D

`-8hat(i)+4hat(j)`

Text Solution

Verified by Experts

The correct Answer is:
D
Equipotential lines are always `bot^(r)` to the electric field strength lines.
`:'` Slope of equipotential lines `=2`
`:.` Slope of electric field must be `=-1//2`
`rArr` Electric field strength vector `=8hat(i)+4hat(j)`
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