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The velocity with which the group of waves travels is called as group velocity
or the velocity with which a ray packet goes is called as group velocity
Grandfather paradox: A paradox proposed to discount time travel & revel why it violates causality. Say that your grandfather constructs a time machine. Currently, you employ h
Do you know about optical rotation?
Action and reaction are always equal and opposite.Then,how does a body moves?
working principle of a prism
What is quarter wave plate? Give its theory
Rectifier: Rectifier is a device that converts all alternating current or voltage into direct current or voltage is known as rectifier
Are made up of alloys (manganin, constantan or nichrome) these materials have moderate Resistivity which is practically independent of temperature so that the specified value of re
Two particles execute S.H.M of same amplitude and frequency ,along the same straight line from same mean position.They cross one another without collision,when going in opposite di
Q. When the negative feedback is practical to an amplifier of gain 50 the gain falls to 25. Compute the feedback ratio? Af = A / 1 + Aβ 25 = 50 / 1 + 50 β 1 = 2 / 1 + 50
A physics student performs a double-slit diffraction experiment on an optical bench, as shown in the figure below. The light from a helium-neon laser has a wavelength of 632.8
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