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Correction of short sightedness
To remove this defect a convex lens is used in front of eye.
Can you explain coherent sources of light?
COHERENCE : 1) Visible light energy is emitted when the excited electrons in atoms undergo transitions to the ground state. 2) In ordinary light sources, these transitions
Length contraction
Does destructive interference violate the principle of conservation of energy? Briefly explain.
What is the maximum wavelength of the visible spectrum so that 3 rd order spectrum can be obtained by a plane diffraction grating having 5654 lines/cm?
Described the two fundamental purpose of surveying?
Define Eddy Currents ? If you try to pull a solid piece of some metals (good electrical conductors) quickly between the poles of a strong magnet, you will feel a force pushing
An object in free fall has an acceleration of 9.80 m/s 2 assuming that there is no air resistance. What is the speed of an object dropped from the top of a tall cliff 3.50 s a
Longitudinal Wave A wave is a disturbance of a medium that transports energy by the medium without enduringly transporting matter. Within a wave, particles of the medium are te
How many types of fibers end are there? Basically there are two types of fibers end are: adhesive encapsulated and state of the art fused, though some manufactures dispense alo
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