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Suppose the charge of a proton and an el...

Suppose the charge of a proton and an electron differ slightly. One of them is -e and the other is `(e +Deltae`). If the net of between force and gravitational force between two hydrogen atoms placed at a distance d (much greater than atomic size) apart is zero, then `Deltae` is of the other [Given mass of hydrogen, `m_(h) = 1.67 xx 10^(-27)kg]`

A

`10^(-23)C`

B

`10^(-37)C`

C

`10^(-47)C`

D

`10^(-20)C`

Text Solution

Verified by Experts

The correct Answer is:
B
`(Gm+m)/(r^(2))=(k(Deltae)^(2))/(r^(2))`
`Deltae=msqrt((G)/(k))`
`=1.67xx10^(-11)sqrt((6.67xx10^(-11))/(9xx10^(1)))`
`=1.427xx10^(-11)C`
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