calculate the wave number of fifth line in the balmer series
Answers
Answered by
4
1/λ = RZ2[ 1/n12 - 1/n22 ]
N1= 2
N2= 7
R = 1.1×107
1/λ = 1.1×107[ 1/4 - 1/49 ]
Λ = 396nm
N1= 2
N2= 7
R = 1.1×107
1/λ = 1.1×107[ 1/4 - 1/49 ]
Λ = 396nm
Answered by
3
the wavenumber of fifth line in the balmer series is equal to 25.2 x 10⁹ m-¹
Explanation:
- The wavenumber of a substance is the inverse of the wavelength. Since the series is Balmer hence the initial orbit is n= 2 and the final orbit n= 7.
- This is because it is the fifth line starting from number 3.
The formula of wave number is given below,
Wave number , w = R Z ²[ 1/ n1 - 1/ n2 ]
- Standard value of R = 1.1×10⁷
1/λ = 1.1 × 10⁷ [ 1/2² - 1/7² ]
- Hence the wavenumber is equal to 25.2 x 10⁹ m¹
To know more about wave number,
What is wave number of beam in air if its frequency is 6.667 ×10 ...
https://brainly.in/question/3308706
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