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1
MHT CET 2023 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which from following rule / principle states that "No two electrons in an atom can have the same set of four quantum numbers"?

A
Pauli's exclusion principle
B
Hund's rule
C
Aufbau rule
D
Heisenberg uncertainty principle
2
MHT CET 2023 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Calculate the wavenumber of the photon emitted during transition from the orbit of $$n=2$$ to $$n=1$$ in hydrogen atom. $$\left[R_H=109677 \mathrm{~cm}^{-1}\right]$$

A
$$27419.3 \mathrm{~cm}^{-}$$
B
$$109677.0 \mathrm{~cm}^{-1}$$
C
$$12064.5 \mathrm{~cm}^{-1}$$
D
$$82257.8 \mathrm{~cm}^{-1}$$
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 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the wavelength for a wave having frequency 50 Hz?

A
1.6 $$\times$$ 10$$^6$$ m
B
6 $$\times$$ 10$$^{-2}$$ m
C
6 $$\times$$ 10$$^6$$ m
D
15 $$\times$$ 10$$^2$$ m
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MHT CET Subjects
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Units & Measurement and Dimensions Vector Algebra Motion Laws of Motion Circular Motion Work, Energy and Power Center of Mass and Collision Rotational Motion Gravitation Simple Harmonic Motion Fluid Mechanics Elasticity Waves Heat and Thermodynamics
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Ray Optics Wave Optics
Electromagnetism
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Physical Chemistry
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Periodic Table and Periodicity Chemical Bonding and Molecular Structure Metallurgy Hydrogen and It's Compounds s-Block Elements p-Block Elements d and f Block Elements Coordination Compounds Environmental Chemistry
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Calculus
Functions Limits, Continuity and Differentiability Differentiation Application of Derivatives Indefinite Integration Definite Integration Area Under The Curves Differential Equations
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Straight Lines and Pair of Straight Lines Circle Parabola
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