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Fermat's principle; principle of least time (P. de Fermat):
The principle put by P. de Fermat, which states the path taken through a ray of light among any two points into a system is always the path which takes the least time.
A point is operating simple harmonic motion with a time period 2πs. At its mean position its speed is 0.05 m/s. Calculate its speed when it is at a distance of 0.04 m from the mean
If the input voltage for the op amp shown in Figure, is -0.5V, Determine (a) The voltage gain (b) The output voltage.
BALLISTIC FLIGHT: "A flight in which a projectile is given a starting push and is permitted to move freely due to inertia and under the action of gravity is known as ballistic
Question 1. Explain how will you perform ward radiography? 2. Discuss the radiographic projections recommended for imaging the first to third cervical vertebrae? 3. Write
Define the physical significance of damping coefficient and how can we caluclate it? What is its unit
Ans) In the first one..... F=ma...the only force which acts is F...which causes an acc. of ''a'' to the body of mass m... and as the force=>F=ma but on the second... let .
A steel wire in a piano has a length of 0.6000 m and a mass of 3.600 10 -3 kg. To what tension must this wire be stretched in order that the fundamental vibration correspond to
A iron rod on the surface of the beach and other iron rod into the sea water which metal corrodes easily? Ans) An iron rod on the surface of teh seawater because in sea it contains
A metal has a work function of 4.80 eV. Will ultraviolet radiation with a wave length of 385 nm be able to eject a photoelectron from the metal?
explain air wedge
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