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Frequency
The number of vibration done per second by an oscillation body is known its frequency. It is denoted by V. The S.I unit is Hz.
V=1/T
Stefan-Boltzmann law (Stefan, L. Boltzmann): The radiated power P (it is rate of emission of electromagnetic energy) of hot body is proportional to the radiating surface area,
Give a mathematical expression for linear width of principal maxima in case of single slit Fraunhofer diffraction.
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
Gaia hypothesis (J. Lovelock, 1969): The idea that as a whole Earth should be regarded as a living organism & that biological procedure stabilize the environment.
Compound microscope principal.
The term pure iron is meant a ferrous material with an extra low carbon content for example low carbon steel and electrolytic iron. In low carbon steel carbon content is less than
DIMENSION of Newton DIMENSION ? The dimension of force is [MLT -2 ]
A conductor moves with a velocity of 20m/s at an angle of (a) 90 ? (b) 45 ? (c) 30 ? , to a magnetic field produced among two square-faced poles of side length 2.5cm. If the
NEWTON'S THIRD LAW OF MOTION: This law can be described as "Actions and reactions are equal and opposite". OR To every action there is a
When the wavelength of wave remains unchanged, the scattering is known as elastic.
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