MGSU Physics

Calculate de-Broglie wavelength associated with thermal neutrons at 27^oc.

ANSWER : The de Broglie wavelength is a fundamental concept in quantum mechanics that describes the wave-like nature of particles. Proposed ...
Explain Perfect Diamagnetism in Super Conductors.

ANSWER : Superconductors are unique materials that exhibit remarkable properties when cooled to very low temperatures. One of these properti...
Show that the De-Broglie wavelength for a particle with rest mass \(m_0\) and kinetic energy \(K\) is given by: \[ \lambda = \frac{hc}{\sqrt{K(K + 2m_0c^2)}} \]

ANSWER : In quantum mechanics, Louis De-Broglie proposed that particles, such as electrons, possess both particle-like and wave-like propert...
Define Entropy. Write its significance and show that the entropy of a perfect gas remains constant in a reversible process but increase in irreversible process.

ANSWER : Entropy is a fundamental concept in thermodynamics that describes the level of disorder or randomness in a system. It is denoted by...
Write Planck's Radiation Law and using it explain the spectral distribution of Black Body Radiation.

ANSWER : Planck's Radiation Law describes the spectral distribution of electromagnetic radiation emitted by a black body at a certain te...
Give two experimental facts that show charge independence of Nuclear Forces.

ANSWER : Experimental evidence for charge independence of nuclear forces can be observed through the following facts : Isotopic Masses : Is...
Write the Basic Principle of Operation of Gaseous Detectors for Nuclear Particle Detection.

ANSWER : Gaseous detectors work based on a simple principle to detect nuclear particles. They consist of a chamber filled with a gas, typica...
Explain Betatron work as a Transformer.

ANSWER : The betatron is a type of particle accelerator used to accelerate electrons to high energies by using changing magnetic fields. It ...
What is Uncertainity Principle? Estimate ground state energy of Hydrogen atom using it.

ANSWER : The uncertainty principle is a fundamental concept in quantum mechanics, stating that certain pairs of physical properties, like po...
Explain the properties of Wave Function.

ANSWER : The concept of the wave function lies at the heart of quantum mechanics, providing a powerful mathematical tool for understanding t...

MGSU Physics

Define Polarisation.

The position and the velocity of two particles are \(\vec{r}_1\), \(\vec{r}_2\) and \(\vec{v}_1\), \(\vec{v}_2\). Prove that they collide only if : \((\vec{r}_1 - \vec{r}_2) \times (\vec{v}_1 - \vec{v}_2) = 0\).

Write down the Equations of Motion of Particle moving under Central Force.

What is Driven Simple Harmonic Oscillator?

Give the expression for Time Period of Compound Pendulum.

What do you mean by Length Contraction?

Define Inertial Frame of Reference.

Prove that limiting values of σ is -1 and 0.5.

Calculate the work done to twist a steel wire by an angle 45° having radius as 1 mm and length as 25 cm. Modulus of rigidity of steel is 8 × 10¹¹ dyne/cm².

An ellipse having x = a cos θ and y = b sin θ. Calculate area of the ellipse.

State Stokes' Law.

Write Lenz's Law.

Define Elasticity.

Define Critical Velocity.

What is Current Density? Write its dimension.

What is the Resonant Frequency of a Cyclotron?

State Ampere's Law.

Define Scalar and Vector Field.

What do you mean by Vector Product?

Define Poisson's Ratio.

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