Choose the correct options for the following questions.
During the transition of electron of hydrogen atom from higher orbit to third orbit, a photon of:
Difficulty: Easy
A:
Lyman series is emitted
B:
Balmer series is emitted
C:
Paschen series is emitted
D:
Brackett series is emitted
Only those orbits are allowed for the electrons of hydrogen atom for which orbital angular momentum is equal to an integral multiple of:
Difficulty: Easy
A:
2h
B:
$\frac{nh}{2\pi}$
C:
$2\pi h$
D:
$\frac{h}{2\pi}$
mvr is an expression for:
Difficulty: Easy
A:
Linear momentum
B:
Angular momentum
C:
Momentum of a force
D:
Torque
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