Home
Class 12
PHYSICS
An electron changes its position from or...

An electron changes its position from orbit `n = 4` to the orbit `n = 2` of an atom. The wavelength of the emitted radiation's is `(R =` Rydberg's constant)

A

`(16)/(R )`

B

`(16)/(3R)`

C

`(16)/(5R)`

D

`(16)/(7R)`

Text Solution

Verified by Experts

The correct Answer is:
B
`(1)/(lambda) = R [(1)/(n_(1)^(2)) - (1)/(n_(2)^(2))] = R [(1)/((2)^(2)) - (1)/((4)^(2))] rArr lambda = (16)/(3R)`
Promotional Banner

Topper's Solved these Questions

  • ATOMIC PHYSICS

    A2Z|Exercise Assertion Reason|5 Videos

  • ATOMIC PHYSICS

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • ATOMIC PHYSICS

    A2Z|Exercise AIPMT/NEET Questions|31 Videos

  • ALTERNATING CURRENT

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • CURRENT ELECTRICITY

    A2Z|Exercise Section D - Chapter End Test|29 Videos

Similar Questions

Explore conceptually related problems

An electron makes a transition from orbit n = 4 to the orbit n = 2 of a hydrogen atom. The wave number of the emitted radiations (R = Rydberg's constant) will be

In Lyman series the wavelength lambda of emitted radiation is given by (R is rydberg constant)

if the electron in hydrogen orbit jumps form third orbit to second orbit, the wavelength of the emitted radiation is given by

If the electron in the hydrogen atom jumps from third orbit to second orbit the wavelength of the emitted radiation in term of Rydberg constant is

When an electron jumps from the orbit n=2 to n=4, then wavelength of the radiations absorbed will be where, (where R is Rydberg's constant)

When the electron in a hydrogen atom jumps from the second orbit to the first orbit , the wavelength of the radiation emitted is lamda . When the electron jumps from the third orbit to the first orbit , of the same atom , the wavelength of the emitted radiation would be

An electron transits for n^(th) orbit to ground in a hydrogen-like atom (Z = 11). The wavelength of emitted radiation, lambda is equal to the de Broglie wavelength of electron in n^(th) orbit. Choose the correct options.

If, an electron in hydrogen atom jumps from an orbit of lelvel n=3 to an orbit of level n=2, emitted radiation has a freqwuency (R= Rydbertg's contant ,c = velocity of light)