CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 202  204 of 463
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Question number: 202
» Quantum Mechanics » Relativistic Quantum Mechanics » Dirac Equations
Appeared in Year: 2014
Question
The ground state energy of the attractive delta function potential ; where, is calculated with the variational trial function is (December)
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Question number: 203
» Quantum Mechanics » Motion in Central Potential » Angular Momentum Algebra
Appeared in Year: 2011
Question
Consider a particle in a one dimensional potential that satisfies. Let and denote the ground and the first excited states, respectively, and let be a normalized state with and being real constants. The expectation value of the position operator in the state is given by,  (December)
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Question number: 204
» Electronics and Experimental Methods » Microprocessor and Microcontroller Basics
Appeared in Year: 2011
Question
The pins 0, 1, 2 and 3 of part A of a microcontroller are connected with resistors to drive an LED at various intensities as shown in the figure.
For and a voltage drop of across the LED, the range (maximum current) and resolution (Step size) of the drive current are, respectively,  (December)
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