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Yellow light emitted from a sodium lamp has a wavelength (λ) of...

Yellow light emitted from a sodium lamp | Class 11 Chemistry Chapter Structure of Atom, Structure of Atom NCERT Solutions

Question:

Yellow light emitted from a sodium lamp has a wavelength (λ) of 580 nm. Calculate the frequency (ν) and wave number () of the yellow light.

Answer:

Here λ = 580 nm(given)

We have to find out ν &

Therefore from the equation we can write,

Where, ν = frequency of yellow light

c = velocity of light in vacuum = 3 × 10⁸ m/s

λ = wavelength of yellow light = 580 nm = 580 × 10^–9 m

Substituting the values in we get

Thus, frequency of yellow light emitted from the sodium lamp

= 5.17 × 1014 s–1

Wave number = it is defined as the number of wavelengths which can be accommodated in 1cm length along the direction of propagation.

Wave number of yellow light is given by the equation

We have λ = 580 nm(given),putting the value in the equation we get

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Comments

Batman Arkham Asylum
2019-09-22 11:23:30

Thanks

Aditya Singh Rajput
2019-08-12 20:56:30

Thanks

Vishnu
2019-07-19 08:17:17

Very usefull

Raj Sharma
2019-07-01 14:24:53

How could you find out the sub shell by N=?

Aileen
2019-07-01 07:17:35

Thank you ...it is really usefull

Kushi
2019-06-29 22:29:23

It is very usefull

Khushi
2019-06-28 07:28:34

Thank you

Achu
2019-06-23 20:06:42

Gowtham
2019-06-15 08:42:54

Good Thanks a lot for this kind of help

Yuks
2019-03-05 17:41:32

Thanx it was useful

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Welcome to the NCERT Solutions for Class 11 Chemistry - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 5: Yellow light emitted from a sodium lamp has a wavelength (λ) of 580 nm. Calculate the frequen....

Yellow light emitted from a sodium lamp | Class 11 Chemistry Chapter Structure of Atom, Structure of Atom NCERT Solutions

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