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What do you mean by polarisation of lattice vibrations in real crystals?
How 1D diatomic chain acts as band pass filter?
A bird experiences a wind gust of 13 m/s [E] while flying 16m/s [W]. What is the overall velocity of the bird? Which direction is it moving?
a simple pendulum in a certain planet is found to vibrate 50 times in 100 s. find its period, its frequency. when 1.5 m of its length is cut, it vibrates 50 times on 50 s. find the original length of the pendulum.
if a diameter of man hair about 0.05 mm. find that diameter in meters
A 20g mass is suspended from a metre rod at the 20cm.The metre rod is balanced on 40cm mark on wedge.Weight of metre rod is?
3) A baseball player leads off the game and hits a long home run. The ball leaves the bat at an angle of 30.0o from the horizontal with a velocity of 42.0 m/s. How far will it travel in the air?
The atmospheric pressure at sea level is 76cm Hg. How much is this pressure in pascals?
the position of a particle going along a straight line is x1=100 metres at 10:00 A.M. and x2 = 200 metres at 10:30 P. M. Find the velocity of the particle
Zinc has a hcp structure. The height of the unit cell is 4.94a.the centres of the atoms are 2.7a apart. Calculate the volume of the unit cell and density of zinc.