1
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the frequency of yellow light having wavelength $$580 \mathrm{~nm}$$ ?

A
$$193 \times 10^{-9} \mathrm{~Hz}$$
B
$$517 \times 10^{-14} \mathrm{~Hz}$$
C
$$5.17 \times 10^{14} \mathrm{~Hz}$$
D
$$580 \times 10^{-9} \mathrm{~Hz}$$
2
MHT CET 2021 23th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Two electrons occupying the same orbital are distinguished by

A
Principal quantum number
B
Azimuthal quantum number
C
Magnetic quantum number
D
Spin quantum number
3
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the energy of an electron in stationary state corresponding to $$\mathrm{n}=2$$ ?

A
$$-1.45 \times 10^{-18} \mathrm{~J}$$
B
$$-0.545 \times 10^{-18} \mathrm{~J}$$
C
$$-3.45 \times 10^{-18} \mathrm{~J}$$
D
$$-2.5 \times 10^{-18} \mathrm{~J}$$
4
MHT CET 2021 22th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

The wavelength of blue light is $$480 \mathrm{~nm}$$. What is frequency of this light?

A
$$4.8 \times 10^9 \mathrm{~Hz}$$
B
$$2.25 \times 10^{14} \mathrm{~Hz}$$
C
$$6.25 \times 10^{14} \mathrm{~Hz}$$
D
$$5.25 \times 10^9 \mathrm{~Hz}$$
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