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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 the shadow is a right-angled triangle with base angle equivalent to the latitude of the place at which it is going to be used.
physical significance
Molecules of a medium after absorbing incoming light radiations, sends them in all direction. This process is called as Scattering.
What is double refraction? Differentiate between ordinary and extra ordinary ray.
Cherenkov [Cerenkov] radiation (P.A. Cherenkov) Radiation emitted through a massive particle that is moving faster than light in the medium by which it is travelling. None of
Current time base generator
I need help solving an equation or two to find the elastic potential energy of a spring when compressed. Spring starts at .75 m, and is compressed to .25 m by a force of 12 newtons
Q. Escape Velocity An object will conquer the force of gravity when its kinetic energy in the direction away from earth exceeds its potential energy. We find the smallest kinet
State 'Inverse square law of magnetism'. A. Coulomb's inverse law of magnetism states that, "The force of attraction or repulsion between two magnetic poles is directly pro
Alpha particles are nuclei of: a) Hydrogen b) Helium c) Oxygen d) Nitrogen Ans: Alpha particles are nuclei of helium.
when the body is uniform motion
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