Determine the frequency and the speed of these waves. The wavelength is 8.6 meters and the period is 6.2 seconds. Now find speed using the v = f. λ equation<span>.</span>
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The working equation would be Vf (final velocity) = Vi
(initial velocity) + a (acceleration) t (time). The given data are the initial
velocity (5.0 m/s), acceleration (-2.5 m/s^2, negative since it is said to
decelerate) and the final velocity (0 m/s, since it will put to a stop). The
time would be 2 seconds.
Explanation:
It is given that,
Wavelength of monochromatic light, 
Slits separation, 
(a) We need to find the angle corresponding to the first bright fringe. For bright fringe the equation is given as :
, n = 1



(b) We need to find the angle corresponding to the second dark fringe, n = 1
So, 




Hence, this is the required solution.