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1
MHT CET 2024 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is energy associated with fourth orbit of hydrogen atom?

$$\left(\mathrm{R}_{\mathrm{H}}=2.18 \times 10^{-18} \mathrm{~J}\right)$$

A
$-0.436 \times 10^{-18} \mathrm{~J}$
B
$-0.545 \times 10^{-18} \mathrm{~J}$
C
$-0.242 \times 10^{-18} \mathrm{~J}$
D
$-0.136 \times 10^{-18} \mathrm{~J}$
2
MHT CET 2024 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which from following species does not have number of electrons similar to other three species?

A
Ne
B
$\mathrm{O}^{--}$
C
Na
D
$\mathrm{Na}^{+}$
3
MHT CET 2023 14th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Calculate the frequency if wavelength is $$750 \mathrm{~nm}$$.

A
$$2 \times 10^{14} \mathrm{~Hz}$$
B
$$4 \times 10^{14} \mathrm{~Hz}$$
C
$$6 \times 10^{15} \mathrm{~Hz}$$
D
$$8 \times 10^{15} \mathrm{~Hz}$$
4
MHT CET 2023 14th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Find the number of orbitals and maximum electrons respectively present in $$\mathrm{M}$$-shell?

A
$$4,8$$
B
$$9,18$$
C
$$16,32$$
D
$$1,2$$
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