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Explain electrical conductivity of a conductor and give its S.I. unit. Write S.I. unit of magnetic flux. Is it a vector or a scalar quantity?
In plane transmission grating the width of the each slit is same to half of the opaque portion. Which order of spectra will be absent?
Davisson and Germer scattered electrons from a crystal of nickel. The scattered electrons formed a strong diffraction pattern. What significant conclusion was drawn from thi
Im having trouble understanding these,, could someone explain them in lamens terms
(i) It having of district bright bands. (ii)It is given by an excited source in molecular state. (iii) E.g. Spectra of molecular NH 3 , CO, H 2 etc.
Do glass or polymer transmits the radiation? There is not a simple answer since it will always depend on the last use and working conditions of the system. Usually speaking gla
Q. What is ionisation potential energy? For hydrogen atom the energy necessary to remove an electron from first orbit to its outermost orbit (n=∞) is 13.6-0 = 13.6eV. This ene
A mild steel ring has a radius of 50mm and a cross-sectional area of 400mm 2 . A current of 0.5 A flows in a coil wound uniformly around the ring and the flux formed is 0.1mWb
A machine gun fires a bullet of mass 40 g with a velocity 1200 m/s The man holding it, can exert . a maximum force of 144 N on the gun. How many bullets can he fire per second at
Photons and gravity : It is observed that light is affected by gravity. We can recognize the gravitational behaviour of light from the fact that although a photon has zero rest mas
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