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If the energy difference between the ground state of an atom and its excited state is 4.4×10-4 J, the wavelength of photon required to produce the transition is

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Important Questions on Structure of Atom

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Chemistry Crash Course MHT-CET>Chapter 3 - Structure of Atom>Exercise 1>Q 48
The velocity of a particle A is 0.1 m s-1 and that of a particle B is 0.05 m s-1. If the mass of the particle B is five times that of the particle A, the ratio of de Broglie wavelengths associated with the particles A and B is
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Chemistry Crash Course MHT-CET>Chapter 3 - Structure of Atom>Exercise 1>Q 49
The uncertainty in the position of an electron (mass =9.1×10-28 g) moving with a velocity of 3.0×104 cm s-1 accurate up to 0.011% will be
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Chemistry Crash Course MHT-CET>Chapter 3 - Structure of Atom>Exercise 1>Q 50
What transition in the hydrogen spectrum would have the same wavelength as the transition n=4 to n=2 of He+ spectrum?
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Chemistry Crash Course MHT-CET>Chapter 3 - Structure of Atom>Exercise 1>Q 51
For a one-electron atom, the set of allowed quantum numbers is:
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Chemistry Crash Course MHT-CET>Chapter 3 - Structure of Atom>Exercise 1>Q 52
Maximum number of electrons that can be accommodated in the subshell with azimuthal quantum number l=4, is:
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Chemistry Crash Course MHT-CET>Chapter 3 - Structure of Atom>Exercise 1>Q 53

The electronic configuration which obeys Hund's rule for the ground state of carbon atom is:

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Chemistry Crash Course MHT-CET>Chapter 3 - Structure of Atom>Exercise 1>Q 54
Among the following, the INCORRECT statement is
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Chemistry Crash Course MHT-CET>Chapter 3 - Structure of Atom>Exercise 1>Q 55
What is the maximum number of orbitals having n=5 and l=3?