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Department of Electrical Engineering
Applied Physics I
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Question 1 : The qartz tube of gas laser is filled with a mixture of _________ gas
Option-1 :Co2 and H2
Option-2 :N2 and CO2
Option-3 :Ne and He
Option-4 :None of them
Question 2 : Which phenomenon causes the LASER radiation
Option-1 :diffrection
Option-2 :Interference
Option-3 :Extreme brightness
Option-4 :None of them
Question 3 : An important application of laser is
Option-1 :Defection of abnormal growth
Option-2 :Obtained to treat the human and animal cancens
Option-3 :Soldering and metal culting
Option-4 :goagulation and crystallisation
Question 4 : In order to draw more current from an electric source__________ the phenomenon of magnetism is
Option-1 :Resistors are connected in parallel
Option-2 :Resistors are connected in series
Option-3 :Ressistors are connected in series and parallel
Option-4 :None of them
Question 5 : The phenomenon of magnetism is
Option-1 :The arrangement of tiny magnetic molecules in a particular direction
Option-2 :The arrangement of tiny magnetic molecules in diferent directions
Option-3 :Single direction of molecular current
Option-4 :Different directions of molecular currents
Question 6 : Which phenomenon causes interference of light
Option-1 :coherence
Option-2 :diffraction
Option-3 :superposition
Option-4 :polarisation
Question 7 : A triode has
Option-1 :One grid
Option-2 :three grids
Option-3 :No grid
Option-4 :None of them
Question 8 : The device which convents dic into a.c is called
Option-1 :A rectifier
Option-2 :An amplifier
Option-3 :An inverter
Option-4 :none of them
Question 9 : A solid state rectifier is
Option-1 :A diode
Option-2 :A value
Option-3 :A PN junction
Option-4 :None of these
Question 10 : If a proton is moved against the coulomb force of an electric field
Option-1 :Work is done by the electric field
Option-2 :Energy is used from some outside source
Option-3 :The strength of the filed is decreased
Option-4 :The energy of the system is decreased
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