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The electron in the hydrogen atom is moving with a speed of 2.3x106 m/s in an orbit of radius 0.53 Å. Calculate the period of revolution of the electron. (Π = 3.142)
Concept: Magnetic Dipole Moment of a Revolving Electron
Concept: Bohr’s Atomic Model
What happens to a ferromagnetic substance heated above Curie temperature ?
Concept: Curie Temperature
The susceptibility of magnesium at 300 K is 1.2 x 10 -5 . What will be its susceptibility at 200 K.
Concept: Curie Temperature
What happens to a ferromagnetic material when its temperature increases above curie temperature?
Concept: Magnetic Properties of Materials
Answer in brief.
Discuss the Curie law for paramagnetic material.
Concept: Magnetic Properties of Materials
Determine the series limit of Balmer, Paschen, and Pfund series, given the limit for Lyman series is 912 Å.
Concept: Atomic Spectra
What is the difference between a nuclear reactor and a nuclear bomb?
Concept: Atomic Nucleus
An electron in hydrogen atom stays in its second orbit for 10−8 s. How many revolutions will it make around the nucleus at that time?
Concept: Mass-energy and Nuclear Binding Energy >> Nuclear Binding Energy
What is the magnetization of a bar magnet having a length of 6 cm and the area of cross-section 5 cm2?
Concept: Magnetisation and Magnetic Intensity
A magnetic material of susceptibility 3 × 10−4, and magnetic intensity is 4 × 10−4 Am−1. Then The magnetization in the units of Am−1 is ______.
Concept: Magnetisation and Magnetic Intensity
What does the ratio of magnetization to magnetic intensity indicate?
Concept: Magnetisation and Magnetic Intensity
The moment of a magnet (15 cm × 2 cm × 1 cm) is 1.2 A-m2. What is its intensity of magnetization?
Concept: Magnetisation and Magnetic Intensity
A solenoid has a core of material with relative permeability 500 and its windings carry a current of 1 A. The number of turns of the solenoid is 500 per meter. Calculate the magnetization of the material.
Concept: Magnetisation and Magnetic Intensity
Define magnetic intensity.
Concept: Magnetisation and Magnetic Intensity
Derive the relation between magnetic field intensity(H) and magnetization(M) for a magnetic material placed in a magnetic field.
Concept: Magnetisation and Magnetic Intensity
In Hydrogen, the electron jumps from the fourth orbit to the second orbit. The wavenumber of the radiations emitted by an electron is ______
Concept: Radioactive Decays
The speed of electron having de Broglie wavelength of 10 -10 m is ______
(me = 9.1 × 10-31 kg, h = 6.63 × 10-34 J-s)
Concept: Bohr’s Atomic Model
What is the energy of an electron in a hydrogen atom for n = ∞?
Concept: Bohr’s Atomic Model
Starting with 𝑟 = `(ε_0h^2n^2)/(pimZe^2),` Show that the speed of an electron in nth orbit varies inversely to principal quantum number.
Concept: Bohr’s Atomic Model
