What is the half-life for the radioactive decay of particle that
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Answer:
Explanation:
From the question we are told that:
Distance of wall from CD
Second bright fringe
Let
Strontium vapor laser has a wavelength \lambda= 431 nm=>431 *10^{-9}m
Generally the equation for Interference is mathematically given by
Where
As we know that gravitational potential energy is given by
here we have
m = mass = 120 kg
h = height = 8.2 m
now from above formula
so above is the gravitational potential energy of the couch