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Q. Illustrate about Optical Memories?
In 1983 one of the most successful consumer products of all times was introduced which is compact disk (CD) digital audio system. This CD was a non-erasable disk which could store more than 60 minutes of audio information on one side. Huge commercial success of this CD enabled development of low-cost optical-disk storage technology that has revolutionised computer data storage. Some optical-disk systems has been introduced. We briefly review each one of these.
Aluminium is (A) Silvery white in colour. (B) Yellow in colour. (C) Reddish in colour. (D) Pale yellow in colour. Ans: Aluminium is Silvery white in c
A luminous point object is placed at a depth of 0.5m inside a liquid. A circular patch of light of radius 0.05675 m is prepared on the surface. Determine the critical angle and re
Q. Escape Velocity An object will conquer the force of gravity when its kinetic energy in the direction away from earth exceeds its potential energy. We find the smallest kinet
What is the difference among Free Electron Theory and Band Theory of solids? Free Electron Theory: This theory says that, metals conduct electricity due to the presence of
show that work is a path function not a property
Because force=dp/dt and force=0 in first law of motion => dp/dt=0 => p=const. or linear momentum is conserved.
A UNIFORM ROD OF MASS M, HINGED AT ITS UPPER END, IS RELEASED FROM REST FROM A HORIZONTAL POSITION. WHEN IT PASSES THROUGH THE VERTICAL POSITION FIND THE FORCE ON THE HINGE.
Charles' law (J.A.C. Charles; c. 1787) At constant pressure the volume of ideal gas is proportional to the thermodynamic temperature of that gas.
a small object is 10cm in front of a plane mirror if you stand behind the object 30cm from it and look at its image for what distance must you focus your eyes
A box is divided into two parts of equal volume via a partition. The box is thermally insulated from the surroundings. Consider that compartment 1 contains an ideal gas A at P 0 ,
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