CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 107 - 110 of 463

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Question number: 107

» Electromagnetic Theory » Reflection and Refraction

Appeared in Year: 2011

MCQ▾

Question

In a Young’s double slit interference experiment, the slits are at a distance 2L from each other and the screen is at a distance D from the slits. If a glass slab of refractive index Equation and thickness Equation is placed in the path of one of the beams, the minimum value of d for the central fringe to be dark is – (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 108

» Quantum Mechanics » Commutators and Heisenberg Uncertainty Principle

Appeared in Year: 2012

MCQ▾

Question

The commutator Equation is – (June)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 109

» Classical Mechanics » Dynamical System

Appeared in Year: 2014

MCQ▾

Question

The radius of Earth is approximately 6400 km. The height h at which the acceleration due to Earth’s gravity differs from Equation at the Earth’s surface by approximately 1 % is – (December)

Choices

Choice (4) Response

a.

48 km

b.

16 km

c.

32 km

d.

64 km

Question number: 110

» Quantum Mechanics » Timeindependent Perturbation Theory and Applications

Appeared in Year: 2013

MCQ▾

Question

The motion of a particle of mass m in one dimension is described by the HamiltonianEquation . What is the difference between the (quantized) energy of the first two levels? (In the following, Equation is the expectation value of Equation in the ground state. )

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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