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## Latest physics information, tutorials, concepts, interview questions, and everything related to physics.

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Faraday’s law gives the idea about how an electromotive force comes into action when a magnetic field interacts with an electric circuit.

# What are applications of X-rays?

In 1895, German physicist Wilhelm Roentgen discovered X-rays. X-rays are electromagnetic in nature and application of X-rays are innumerable.

# What is Bragg’s law?

W. L. Bragg gave a simple explanation for the study of crystal structure by using the phenomenon of diffraction and name it is as Bragg’s law.

# What is Bravais Lattice?

Bravais lattice gives information of the periodic array in which the repeated units of the crystal are arranged.

# What are Shock Waves and how they differ from Sound Wave?

Shock waves are strong pressure waves in any elastic medium like water, solid or air. Supersonic aircraft or lightning produce Shock waves.

# What is Helium-Neon Laser?

Helium-Neon Laser laser is a gas laser. In this a mixture of helium and neon gas is used as a gain medium. It was the first continuous-wave laser.

# What is CRO or Cathode Ray Oscilloscope?

CRO or Cathode Ray Oscilloscope displays and measures the electrical signals, time intervals and phase shift between two electrical signals.

# What is Pumping and its types?

Pumping is the process to achieve population inversion .

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# What is Heisenberg’s Uncertainty Principle?

Heisenberg’s uncertainty principle states that: If the x-component of the momentum of a particle is measured with an uncertainty ∆px, then its x-position cannot, at the same time, be measured more accurately than ∆x = ℏ/(2∆px).

# What are postulates of Quantum Mechanics?

Quantum mechanics is dealing with the behaviour of matter and light on the atomic and subatomic level.

# What is Simple Harmonic Motion (SHM) ?

Simple Harmonic Motion (SHM) is when the restoring force is directly proportional to the displacement of the body from its mean position.

# What is the Magnetic Hysteresis Curve?

Magnetic Hysteresis Curve represents the relation between magnetizing force (H) and magnetic flux intensity for ferromagnetic material.

# What is Superconductivity?

The materials which exhibit this property of superconductivity are known as Superconductors.

# What is Bravais Lattice?

Bravais lattice gives information of the periodic array in which the repeated units of the crystal are arranged.

# What is Elasticity?

Most solid materials show elastic behaviour to a lesser or greater extent.

# What is Helium-Neon Laser?

Helium-Neon Laser laser is a gas laser. In this a mixture of helium and neon gas is used as a gain medium. It was the first continuous-wave laser.

# What is Wave Function?

The wave function contains all the information about the particle. It is not an observable quantity.