The smallest wavelength of infrared region in hydrogen spectrum is:-

Question

The smallest wavelength of infrared region in hydrogen spectrum is:- (A) 650 nm (B) 90 nm (C) 623 nm (D) 900 nm

Tardigrade Admin · Accepted Answer

The smallest wavelength λmin in the infrared region of the hydrogen spectrum is in paschen series. For paschen series, minimum wavelength n2 = ∈fin n1 = 3 λmin =(9/R)=9×10-7=900 nm

Q. The smallest wavelength of infrared region in hydrogen spectrum is:-

650 nm

90 nm

623 nm

900 nm

The smallest wavelength $λ_{min}$ in the infrared region of the hydrogen spectrum is in paschen series. For paschen series, minimum wavelength $n_{2} = \infty n_{1} = 3$
$λ_{min} = \frac{9}{R} = 9 \times 1 0^{- 7} = 900 nm$

Q. The smallest wavelength of infrared region in hydrogen spectrum is:-

650 nm

90 nm

623 nm

900 nm

The smallest wavelength λmin​ in the infrared region of the hydrogen spectrum is in paschen series. For paschen series, minimum wavelength n2​=∞n1​=3 λmin​=R9​=9×10−7=900nm

The smallest wavelength $λ_{min}$ in the infrared region of the hydrogen spectrum is in paschen series. For paschen series, minimum wavelength $n_{2} = \infty n_{1} = 3$
$λ_{min} = \frac{9}{R} = 9 \times 1 0^{- 7} = 900 nm$