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How is a wave front dissimilar from a ray?
Draw the geometrical, shape of the wave fronts when (i) light diverges from a point source, and (ii) light emerges out of a convex lens when a point source is placed as its focus.
The wave nature of light is demonstrated by which of the following a) The photoelectric effect b) Colour c) The speed of light d) Diffraction Ans: The w
Define Hydrogen Rocket? The reaction chamber of a rocket engine is supplied with a mass flow rate m of sufficient oxygen and hydrogen to allow complete burning of the fuel an
It the angle through which light ray deviates from the original straight line path.
Ask questidefination and explanation of pesudo force on #Minimum 100 words accepted#
what is deforming force
Find amplitude of electric field ina parallel beam of light of intensity 2W/m2 Ans: Given that intensity I=power/area=2W/M2 by using this formula :intensity I=(Emax^2/2c mue not
In the arrangement shown in figure, an object can be hung from a string (with linear mass density µ = 0.002 00 kg/m) that passes over a light pulley. The string is connected to a v
Making a sun-dial To withstand all weather, a sun-dial should be form of metal or painted wood. A cardboard model can be formed for easy experiments. The gnomon which casts
why we called it
Q. Helpful Henry's car is pushing Flat-tire Fred's car to the car shop. While the cars are accelerating up to 15 miles/hour Helpful Henry needs to push Fred's car with 60 N of for
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