WBJEE 2017 Physics Solved Paper

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Question : 39 of 40

Marks: +1, -0

Let vn and En be the respective speed and energy of an electron in the nth orbit of radius rn, in a hydrogen atom, as predicted by Bohr’s model. Then

plot of Enrn∕E1r1 as a function of n is a straight line of slope 0.
plot of rnvn∕r1v1 as a function of n is a straight line of slope 1.
plot of ln(
rn
r1
) as a function of ln(n) is a straight line of slope 2.
plot ln(
rnE1
Enr1
)of as a function of ln(n) is a straight line of slope 4

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