Monochromatic light falling on two very narrow slits 0.048mm apart. Successive fringes on a screen 5.00m away are 6.5cm apart near the center of the pattern. What is the wavelength and frequency of the light?

λ = 5.85 x 10⁻⁷ m = 585 nm

f = 5.13 x 10¹⁴ Hz

Explanation:

We will use Young's Double Slit Experiment's Formula here:

where,

λ = wavelength = ?

Y = Fringe Spacing = 6.5 cm = 0.065 m

d = slit separation = 0.048 mm = 4.8 x 10⁻⁵ m

L = screen distance = 5 m

Therefore,

λ = 5.85 x 10⁻⁷ m = 585 nm

Now, the frequency can be given as:

where,

f = frequency = ?

c = speed of light = 3 x 10⁸ m/s

Therefore,

f = 5.13 x 10¹⁴ Hz

muscle endurance

explanation:

i can do 50 in a row ( but i get so tired after that)

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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