Spectrum of the Hydrogen Atom NEET Questions

Spectrum of the Hydrogen Atom

Spectrum of the Hydrogen Atom MCQ Questions

13.
Which scientist first showed empirically that visible lines of hydrogen spectrum follow a formula?
A.
Bohr
B.
Balmer
C.
Lyman
D.
Rydberg
ANSWER :
B. Balmer
14.
The Swedish spectroscopist who generalized Balmer's formula to all hydrogen series is:
A.
Brackett
B.
Lyman
C.
Rydberg
D.
Paschen
ANSWER :
C. Rydberg
15.
The wavenumber of the first line of Lyman series is approximately:
A.
82,257 cm⁻¹
B.
5,331 cm⁻¹
C.
15,233 cm⁻¹
D.
109,677 cm⁻¹
ANSWER :
A. 82,257 cm⁻¹
16.
The wavelength of first line of Balmer series (Hα) is approximately:
A.
656.3 nm
B.
486.1 nm
C.
434.0 nm
D.
121.6 nm
ANSWER :
A. 656.3 nm
17.
The series limit of any spectral series corresponds to:
A.
n₂ = ∞
B.
n₂ = 2
C.
n₂ = n₁ + 1
D.
n₂ = 1
ANSWER :
A. n₂ = ∞
18.
The series limit of Lyman series has wavenumber:
A.
27,420 cm⁻¹
B.
109,677 cm⁻¹
C.
12,186 cm⁻¹
D.
82,258 cm⁻¹
ANSWER :
B. 109,677 cm⁻¹