1
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0
The mass density of a nucleus varies with mass number $$A$$ as
2
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0
The wavelength of the first line of Lyman series for $$\mathrm{H}$$ - atom is equal to that of the second line of Balmer series for a $$\mathrm{H}$$-like ion. The atomic number $$\mathrm{Z}$$ of $$\mathrm{H}$$-like ion is
3
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0
The first emission of hydrogen atomic spectrum in Lyman series appears at a wavelength of
4
COMEDK 2023 Evening Shift
MCQ (Single Correct Answer)
+1
-0
The mass number of two nuclei $$\mathrm{P}$$ and $$\mathrm{Q}$$ are 27 and 125 respectively. The ratio of their radii $$R_P: R_Q$$ is given by:
Questions Asked from Atoms and Nuclei (MCQ (Single Correct Answer))
Number in Brackets after Paper Indicates No. of Questions
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