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1
MHT CET 2024 10th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the frequency of violet light having wavelength 400 nm ?

A
$3.0 \times 10^{14} \mathrm{~Hz}$
B
$4.0 \times 10^{14} \mathrm{~Hz}$
C
$7.5 \times 10^{14} \mathrm{~Hz}$
D
$9.0 \times 10^{14} \mathrm{~Hz}$
2
MHT CET 2024 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following is radius of first orbit of He$^+$ ?

A
52.90 pm
B
78.90 pm
C
26.45 pm
D
13.35 pm
3
MHT CET 2024 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which parameter is indicated by the number of waves passing through a given point in one second?

A
Wavelength
B
Frequency
C
Wave number
D
Amplitude
4
MHT CET 2024 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following rules states that it is impossible to determine simultaneously the exact position and exact momentum of an electron?

A
Aufbau's principle
B
de Broglie's hypothesis
C
Heisenberg uncertainty principle
D
Pauli's exclusion principle
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