5. Define simple harmonic motion and state the relatio between displacement from its mean position and the
restoring force when a body executes simple harmonic
motion.
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to me A body is supported by a helical spring and causes an
extension of 1.5 cm in the spring. If the mass is set into
e vo vertical oscillation, calculate the period of the oscillation.
(Ans: 0.25s). monotes in brit d amoro do
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Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?