1
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
A certain orbital having 2 angular nodes and no radial nodes is:
2
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
A certain gas absorbs photon of wavelength $4.0 \times 10^{-7} \mathrm{~m}$ and emits radiation at two wavelengths. If one of the emissions occurs at $7.5 \times 10^{-7} \mathrm{~m}$, what is the wavelength at which the second emission occurs?
3
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0
What is the wave number (Units $$\mathrm{cm}^{-1}$$) of the longest wave length transition in the Balmer series of Hydrogen spectrum? $$Z=1 \text { for } H$$
4
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0
What are the Principal & Azimuthal quantum number values of the valence electrons in tripositive Lutetium?
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