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The width of the central bright band of a diffraction pattern is 2.9 cm.
Laser light of unknown wavelength passes through a single slit that is 0.042 mm wide and onto a screen that is 1.5 m from the slit.
What is the wavelength of the light?
explain with the aid of a diagram what is meant by the moment of a force about point
define composition of s.h.m. lijassious figures
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 le
Is the earth the perpetual motion machine
The proton and neutron are collectively called as: (1) Deutron (2) Positron (3) Meson (4) Nucleon Ans: (4) Nucleon
CPH has rest mass, so how it explained by relativity? Answer; never can we see CPH at rest condition. CPH moves faster than light.
Surface gravity on Mars is roughly 1/3 that of the Earth. Consider you drop a rock initially at rest from a height Hm on Mars and it takes a time tg to hit the ground. From what he
why is friction a necessary evil?
A cylindrical metallic wire is stretched to enhance its length by 5%. Measure the percentage change in its resistance.
: Construct a regular proof to derive the conclusion of the following argument: 1. (A & U) ~R 2. ~(~R v ~A) / ~U
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