1
MHT CET 2023 10th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The ratio of the velocity of the electron in the first Bohr orbit to that in the second Bohr orbit of hydrogen atom is

A
$$8: 1$$
B
$$2: 1$$
C
$$4: 1$$
D
$$1: 4$$
2
MHT CET 2023 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The shortest wavelength in the Balmer series of hydrogen atom is equal to the shortest wavelength in the Brackett series of a hydrogen like atom of atomic number $$\mathrm{z}$$. The value of $$\mathrm{z}$$ is

A
2
B
3
C
4
D
6
3
MHT CET 2023 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The ratio of longest to shortest wavelength emitted in Paschen series of hydrogen atom is

A
$$\frac{144}{63}$$
B
$$\frac{25}{9}$$
C
$$\frac{9}{25}$$
D
$$\frac{63}{144}$$
4
MHT CET 2023 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The force acting on the electron in hydrogen atom (Bohr' theory) is related to the principle quantum number '$$n$$' as

A
$$\mathrm{n}^4$$
B
$$\mathrm{n}^{-4}$$
C
$$\mathrm{n}^2$$
D
$$\mathrm{n}^{-2}$$
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