D)LT^-1 speed=distance(L)/time(T)——>L/T
Answer:
d= 0.242 mm
Explanation:
Slit width (d ) = ?
Screen distance ( D ) = 1.25 m
Wave length of light λ = 600 nm
Distance of n the dark fringe from centre
= n λ D / d
Here n = 2
so


d= 0.242 mm
Answer: Katherine Johnson's knowledge of (mathematics) was instrumental in the return of the Apollo astronauts from the Moon to Earth.
Place the boxes 10cm apart, if they are closer that concentrates the mass of the boxes more
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