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INTERFERENCE and DIFFRACTION:
INTERFERENCE: The physical effect of super position of waves from two sources vibrating with same frequency and amplitude is called the interference of waves.
DIFFRACTION : The bending of a wave or its deviation from the original direction of propagation when it meets a small obstacle is called diffraction.
Dirive an expretion for low of succecive disintigretion
Satellite Motion A satellite is acted upon through the force of gravity and this force does accelerate it towards the Earth. Within the absence of gravity a satellite would mov
(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.
What is nucleus? It is the type of an atom where whole mass of the atom is supposes to be concentrated. Or it is the central part of an atom which have proton and
a) Sketch an IV characteristic of a photodiode, showing how the curve shifts as a result of the illumination intensity incident on the device being varied. b) Indicate on the c
What is Vapor Density? Vapour density is the density of a vapour in relation to that of hydrogen. It may be defined as mass of a certain volume of a substance divided by mass of
Making an observation nest for ants An observation nest for the study of the life story of ants can simply be made as follows. Make a wooden U from three 30 cm lengths of w
A lever of the second class Use a uniform wooden bar about 1 m long, 4 cm wide and 5 mm thick. Drill a hole near single end, in the centre of the width dimension. Also drill a
what is specific gravity
Olbers' paradox (H. Olbers; 1826): If the Universe is uniform, infinite & unchanging then the whole sky at night would be bright regarding as bright as the Sun. The further yo
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