A. Ultraviolet region
B. Infrared region
C. Visible region
D. X-ray region
Explanation
Although the Balmer series mainly falls in the visible region , its limiting line (as n → ∞ UV region .
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A. None of these
B. 6
C. 8
D. 4
Explanation
The splitting in a magnetic field is determined by the formula 2 j + 1 2j + 1 , where j j is the total angular momentum quantum number. For 2 D 1 / 2 2D_{1/2} , j = 1 / 2 j = 1/2 , so the number of components is 2 ( 1 / 2 ) + 1 = 6.
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A. 4RH
B. 3/4RH
C. 4/3RH
D. RH
Explanation
The wavelength of the radiation emitted when an electron in a hydrogen atom jumps from a higher orbit (n = 2) to a lower orbit (n = 1) can be calculated using the Rydberg formula:
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ایچ اسپیکٹرم کی مندرجہ ذیل سیریز میں سے کون سی بالائے بنفشی خطے میں واقع ہے؟
A. Balmer series
B. Lyman series
C. Paschen series
D. Bracket series
Explanation
The Lyman series of the hydrogen spectrum lies in the ultraviolet region.
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A. 6.022×10 ^23 mol −1
B. 3.00×10^8 m/s
C. 9.81m/s ^2
D. 1.097×10^5 m −1
Explanation
The Rydberg constant (R) is a physical constant used in atomic spectroscopy.
Its approximate value is 1.097×10^5 m-1
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