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Copernican principle (N. Copernicus)
The idea, recommended by Copernicus, that the Sun, not the Earth, is at the middle of the Universe. Now we know that neither idea is accurate (the Sun is not even situated at the middle of our Galaxy, much less the Universe), but it locate into effect a long chain of demotions of Earth's and our place in the Universe, to where it is currently: On an unimpressive planet orbiting a mediocre star into a corner of a typical galaxy, lost in the Universe.
A sphere of radius R touches two adjacent sides of a room.It also touches an inclined plane at a height of R/5 from the floor.the inclined plane moves towards the sphere at the spe
Diffraction is a phenomenon that is severely associated with light. That is to utter that light and only light undergoes diffraction. (By light here we denote any form of electroma
An atom has the electronic configuration of .1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 4s 2 4p 5 . Its atomic weight is 80. Its atomic number and the number of neutrons in its nucleus
how does a magnifying glass work to produce a large or smaller image?
Draw a schematic diagram of a single optical fibre structure. Describe briefly how an optical fibre is fabricated. Explain in brief, the mechanism of propagation of light signal by
Q. How can we increase the current sensitivity of a galvanometer? The current sensitivity of a galvanometer is able to be increased by (i) Rising the number of turns (ii
infrigious system capacity of spherical conductor is equal to ...........
Noise: An undesirable and unpleasant sound that makes harmful effects on our auditory system is known as noise.
Q. What are Stark and Zeeman effects? It is found that while electric or magnetic field is applied to the atom all of the spectral line split into several lines. The former ef
The Law of Reflection While a ray of light strikes a plane mirror and the light ray reflects off the mirror. Reflection includes a change within direction of the light ray. The
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