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A light ray is reflected off a plane mirror at an angle of 25° from the normal.
A light ray from another source is reflected 54° from the normal.
What is the dissimilarity in the angles of incidence for the two light sources?
Simple gears With a hammer and a medium-sized nail, make holes in the exact centres of various used bottle caps. Straighten the edges of the caps to make them as round as possi
Which of the following particles has more electrons than neutrons: (1) C (2) F- (3)O -2 (4)Al +3 Ans: O -2
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
Who was the first person to show that all objects fall toward Earth with constant _________.
which electromagnetic wave is used to detect forged documents
Tuned oscillator
what are the advantages of using the thermo-electric thermometer over the mecury glass thermometer?
Production of sound messages by a microphone in a radio station (studio). 1) Audio frequency generation. 2) Generation of r.f. carrier wave. 3) Modulation in a transmitter, b) 4
1. Consider two monoenergetic photon beams with the same photon fluences. In one beam the photons are 100 keV and in the other they are 1 MeV. Determine the most appropriate relati
Stern-Gerlach experiment (O. Stern, W. Gerlach; 1922): An experiment which demonstrates the features of spin (intrinsic angular momentum) as a different entity in spite of orb
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