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Why does sun appear flat during sunrise and sunset?
The sun rays have to travel by a larger atmospheric distance. Most of the blue light and shorter wave lengths are removed by scattering.
Only red color, which is least scattered is received by our eyes and appear to come from sun .As the appearance of sun at sunset or sunrise looks almost flat
What is calculated constraint relation?
Briefly explain Brewster's law? Show that at the polarizing angle of incidence the reflected and transmitted light becomes perpendicular to each other.
Match the name of every item given in the list below to the label pointing to that item in the diagram. Answer: I guess the only point I desire to stress here is that
Q. What is cut-off or stopping potential? The minimum negative (retarding) potential specified to the anode for which the photo electric current becomes zero is called the cut
a person holds of hay over his head for 30 min and gets tired . has he done some wirk or not? justify your answer
In a young's double slit experiment a point on the screen is similar distance from both the slits if any one of the slit is closed the intensity at P due to the other slit is 0.02
A non-uniform rod AB has a mass M and length 2l.The mass per unit lengthof the rod is mx at a point of the rod distant x from A. find the moment of inertia of this rod about an axi
The contribution of ionic polarization takes account of the fact that when in a molecule some of the atoms have an excess positive or negative charge (resulting from the ionic char
It is an instrument used to detect small current passing by it by showing deflection. Galvanometers are of dissimilar types e.g. moving coil galvanometer, moving magnet galvanomete
Q. What are coherent sources? Two sources are alleged to be coherent if they emit light waves of the same wave length and start with same phase or have a constant phase differ
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