The largest wavelength in the uv region of the hydrogen spectrum is 122 nm. the smallest wavelength in the infrared region of the hydrogen spectrum is? a). 802nm b). 823nm c). 1882nm d). 1648nm

Question

Vikas TU · Answer

Dear Student,
(B) option seemss corect.
1/l=R(1/n₂²-1/n₁²)
=>1/122=R(1-1/4)
=>1/122=3R/4
=>R=4/3x122

smallest l in the infrared region. n₁= infinity
n₂=3
Therefore, 1/l = R(1/3²-1/infinity)
=R/9
l=9/R=823nm.

Cheers!!

Regards,

Vikas (B. Tech. 4^th year
Thapar University)

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The largest wavelength in the uv region of the hydrogen spectrum is 122 nm. the smallest wavelength in the infrared region of the hydrogen spectrum is? a). 802nm b). 823nm c). 1882nm d). 1648nm

The largest wavelength in the uv region of the hydrogen spectrum is 122 nm. the smallest wavelength in the infrared region of the hydrogen spectrum is?
a). 802nm
b). 823nm
c). 1882nm
d). 1648nm

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The largest wavelength in the uv region of the hydrogen spectrum is 122 nm. the smallest wavelength in the infrared region of the hydrogen spectrum is? a). 802nm b). 823nm c). 1882nm d). 1648nm

The largest wavelength in the uv region of the hydrogen spectrum is 122 nm. the smallest wavelength in the infrared region of the hydrogen spectrum is?a). 802nmb). 823nmc). 1882nmd). 1648nm

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The largest wavelength in the uv region of the hydrogen spectrum is 122 nm. the smallest wavelength in the infrared region of the hydrogen spectrum is?
a). 802nm
b). 823nm
c). 1882nm
d). 1648nm