In the visible spectrum, the Rayleigh scattering effect is significantly smaller in the red region (around 680 nm) compared to the blue region (around 450 nm). Show that the ratio Is/I0 of Rayleigh scattering is 5.2 times smaller at 680 nm than at 450 nm.
The ratio given varies inversely to the fourth power of the wavelength. ( Check Rayleigh's formula). So we can prove the given question easily.

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In the visible spectrum, the Rayleigh scattering effect is significantly smaller in the red region (around...
The hydrogen spectrum shows 4 lines in the region visible spectral (this series is called the Balmer series: Hα (red): λ= 656.3 nm, Hβ (blue-green): λ = 481.1 nm, Hγ (purple): λ = 434.1 nm, and Hλ (purple): λ = 410.2 nm). Another series in the hydrogen spectrum is the Lyman series. Determine the wavelength of the second line of the Lyman series in m and nm (give two digits after the decimal point).
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