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In hydrogen atom spectrum, (R → Rydberg's constant) A. the maximum wavelength of the radiation of Lyman series is 4/3R B. the Balmer series lies in the visible region of the spectrum C. the minimum wavelength of the radiation of Paschen series is 9/R D. the minimum wavelength of the Lyman series is 5/4R Choose the correct answer from the options given below:

1. (1) B, D Only
2. (2) A, B and C Only
3. (3) A, B and D Only
4. (4) A, B Only

Correct answer: (2) A, B and C Only

Solution

Options A, B, and C are correct because the maximum wavelength of the Lyman series is indeed related to Rydberg's constant, the Balmer series is known to fall within the visible spectrum, and the minimum wavelength of the Paschen series can be accurately calculated using Rydberg's formula.

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