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A medium is known as denser if the velocity of ray in that phase is fewer than the speed of the wave in other phase.
In comparison to air velocity of sound is main in water, as water is rarer phase for sound waves w.r.t. air. But it is not right for light (EM-waves). For light rays water is denser medium w.r.t. air.
What do you mean by normal adjustment of a telescope? In What way it is better? What is the need of erecting lens in a terrestrial telescope? What do you mean by its magnific
define electrostatistic
Q. What are non-polar molecules? Give an example. i) A non-polar molecule is one in that the centre of gravity of the positive charges coincides with the centre of gravity of
as flux = E.A and flux density is equal to flux/A then why A/A cannot e cancelled ?
When deforming forces are applied to a body, there is a change in the size of the body. The object is known as strained or deformed. The ratio of change in dimension to the origina
Detail information about ferrits also current research on ferrits
A load of P57 kN is being hoisted at a constant speed by the motor, M which has a weight of 0.5kN. The beam has a weight of P58 N/m. Assume that the hoisting has stopped at the pos
a freely falling object near the Earth''s surface has constant?
Classification of conducting materials: Electrical resistivity of a conducting material or conductor ranges from 10 -8 to 10 -3 ohm-m. A good conducting material should have
the water flowing over the Niagara Falls drops a distance of 50 m. assuming that all the gravitational energy is converted to thermal energy, by what temperature does the water ris
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