JEE Main 11 Jan 2019 Shift 1 Solved Paper

Section: Chemistry

Question : 74 of 90

Marks: +1, -0

Heat treatment of muscular pain involves radiation of wavelength of about 900 nm. Which spectral line of H-atom is suitable for this purpose ? [RH = 1 × 105 cm–1 , h = 6.6 × 10–34 Js, c = 3 × 108 ms–1]

[11 Jan 2019 Shift 1]

Paschen, 5 → 3
Paschen, ∞ → 3
Lyman, ∞ → 1
Balmer, ∞ → 2

Validate

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