Questions
The ratio of the speed of the electron in the first Bohr orbit of hydrogen and the speed of light is equal to (where e, h, and c have their usual meanings in cgs system)
a
2πhc/e2
b
er2h/2πc
c
e2c/2πh
d
2πe2/hc
detailed solution
Correct option is D
vn=k2πe2nhWe know that in cgs system k=1∴ vn=2πe2nh ⇒v1=2πe2h So v1c=2πe2chTalk to our academic expert!
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Which of the following is quantised according to Bohr’s theory of hydrogen atom
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