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Making a simple refracting telescope
To make a simple telescope, two cardboard tubes will be needed, one fitting inside the other. It is not possible to make a satisfactory telescope unless good lenses are available, a fact which was soon discovered by early experimenters.
A linen tester (sometimes a stamp magnifier also) has lenses which are achromatic, that is corrected for colour distortion. Like lens of focal length 2 or 3 cm will provide a suitable eye-piece when mounted in a cork with a hole in it.
a column of water contains fine metal particles of radius 2*E(-8) m, which are in thermal equillibrium at 298 K. if there are 1000 particles per unit volume at a given height,how m
Postulates of Special Theory of Relativity - 1. All law of physics having same form in all inertial frame of reference. 2. The speed of light in free space is constant, irres
The control lever is subject to a clockwise moment of P26 N.m exerted by its shaft at A and is designed to operate with a force of P27 N. The resultant of the couple and the force
what is meant by physics? and also explain the branches of physics.
Write two characteristic features of nuclear force which differentiate it from the Coulomb force.
MANUFACTURING: R esistive element is prepared in carbon composition, but the filler used is ceramic powder. The sheet resistance is controlled by changing the quantity of carb
WHY Surface tension increases when an highly soluble SUBSTANCE is dissolved in water WHILE IT DECREASES WHEN an weakly soluble substance is dissolved in water
Josephson effects (B.D. Josephson; 1962) Electrical effects observed while two superconducting materials are separated through a thin layer of insulating material.
Types of Rectifier: Half wave Rectifier: The half wave rectifier allows positive half cycle of alternating current to pass through the circuit but negative half cycle is s
Draw a picture of a moving source and the waves surrounding it according to what you observed in this experiment. How does the spacing of the wavefronts in front of the source comp
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