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Assertion Second orbit circumference of...

Assertion Second orbit circumference of hydrogen atom is two times the de-Broglie wavelength of electrons in that orbit
Reason de-Broglie wavelength of electron in ground state is minimum.

A

If both Assertion and Reason ar true and Reason is the correct explanation of Assertion.

B

If both Assertion and Reason are true but Reason is not correct explanation of Assertion

C

If Assertion is true by Reason is false.

D

If Assertion is false but Reason is true.

Text Solution

Verified by Experts

The correct Answer is:
B
`mv_(2)r_(2)=2((h)/(2pi))`
`:.2pir_(2)=2((h)/(mv_(2)))=2lambda_(2)`
Further `lambda=(h)/(p)`
Speed of momentum is maximum is ground state. Hence `lambda` is minimum
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