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What is a fiber optic?
It is long lenses. A cylinder or rod of transparent material forming a core surrounded with an external cladding by a slightly dissimilar material. Light, while entering the fiber, rebound on the outer cladding in direction of core.
This way the light by the fiber in bounds or steps, till it exits at the other end.
Derive second law of thermodynamics According the thermodynamics II Law, *efficiency never be unity or never exceed unity. *Coefficient of performance never be infinite
In the figure below the closed curves A and B represent closed surfaces. What is the total flux by the closed surface A? Ans: In concurrence with Gauss's Law the net o
Making a simple reflecting telescope A simple reflecting telescope can be made from a concave mirror obtain from a shaving mirror. The mirror is arranged wooden box of suitable
Your friend has gifted an earphone set to you. While music is on you will try to oppose the two ear phone pieces to attract. Task-I: Will they attract? If yes, why so?
factors affecting emf of cell
Difference among sound and light waves: (i) For propagation of sound rays material phase is required but no material medium is needed for light waves. (ii)Sound rays are long
The minimum real charge on any particle which can exist is: (1)1.6x 10 -19 coulomb (2) 1.6x 10 -10 coulomb (3)4.8 x 10 -10 coulomb (4)Zero Ans: (1)1.6x 10 -19 c
Experiencing a constant horizontal 1.10 m/s wind, a hot-air balloon ascends from the launch site at a constant vertical speed of 2.70 m/s. At a height of 202 m, the balloonist main
why the direction of centripetal force isnot marked in diagram
In an amusement park ride called The Roundup, passengers stand inside a 19.0 -diameter rotating ring. After the ring has acquired sufficient speed, it tilts into a vertical plane.
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