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What are the consequences of dispersion?
The main familiar result of dispersion is the splitting up of the composite white light within its constituent colours as into a rainbow or as observed by using a prism.
The other effect of dispersion is that while optical pulses of temporal width say T1 seconds along with a line width Δ λ nm is launched by the material, the pulse spreads into time as the wavelengths into the line width Δλnm travel with diverse velocities and some acquire delayed regarding the other. Thus, dispersion causes spreading of pulse in time domain.
At what temperature would the average speed of helium atoms equal (a)the escape speed from Earth, 1.12 ´ 10 4 m/s, and (b) the escape speed from the Moon, 2.37´ 10 3 m/s? (See Ch
Unit of Charges: The S.I unit of charge is Coulumb represented by "c".
1)The armature ABCD consists of a copper wire wound on cylindrical soft-iron core.The armature can be rotated horizontal axis perpendicular to magnetic field. 2)NS is permanent
with surface charge density sigma
Q. Illustrate what is the direction of null vector? Answer:- There are two probable answers to this 1) It contain no direction 2) It points in every direction Ans
Draw a ray diagram to show the formation of image of an object placed among the optical centre and focus of the convex lens. Write the characteristics of image formed. Using this d
Reducing friction by an air stream Cut out a disc of cardboard about 10 cm in diameter. With a red-hot pin, burn a hole by the centre. Saw a small cotton reel in half and glue
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Engineers and technologist engage themselves in the design and manufacturing of machine like latches, engines, motors, generators, bulldozers etc. And in the fabrication of vehicle
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