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Depending upon the penetration power, there are two parts of X-rays
Hard X-rays
More penetration power
More frequency of the order of ≈ 1019 Hz
Lesser wavelength range (0.1Å - 4Å)
Soft X-rays
Less penetration power
Less frequency of the order of ≈1016 Hz
More wavelength range (4Å - 100Å)
Defective eyesight due to focusing(refractive)problems- ametropia: It is often possible to correct ametropia completely with glasses There are four general types of ametrop
The density of neutrons is of the order: (1)10 3 kg/ cc (2)10 6 kg/cc (3)10 9 kg/cc (4) 10 11 kg/cc Ans:(4) 10 11 kg/cc
Faraday's law The line integral of the electric field about a closed curve is proportional to the instant time rate of change of the magnetic flux by a surface limited by tha
Q. What is a fuse wire? i) Fuse wire is an alloy of lead 37% as well as tin 63%. It is linked in series in an electric circuit. ii) It has high resistance as well as low mel
Fifth Harmonic-Standing Waves on a String There are a variety of patterns that could be generates through vibrations inside a string, slinky, or rope. Every pattern corresponds
If the distance between the earth and moon were halved, the force of the attraction between them would be: a) One fourth as great b) One half as great c) Twice as g
Poisson equation (S.D. Poisson) It is the differential form of Gauss' law, such as, div E = rho,
A VDR is a special type of resistor that changes its resistance with rise in voltage. It has a very high resistance at low voltage (below the trigger voltage) and very low resista
The speed at which a wave propagates down a string is 300 meters per second. If the frequency of this wave is 150 Hertz, what is the wavelength of this wave? Ans: The wavel
Q. Illustrate what are the characteristics of dead stars? Answer:- Dead stars are typically cold balls of material in empty space. A teaspoonful of white dwarf substance w
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