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AnnyKZ [126]
2 years ago
11

Light with a wavelength of 725 nm passes through the slits of a double-slit experiment. The slits of the experiment are a distan

ce 0.0335 mm apart. What angle does the light make for the third dark fringe?
100 points
Physics
2 answers:
crimeas [40]2 years ago
6 0

Answer:

3.10°

Explanation:

I took the test

jarptica [38.1K]2 years ago
4 0

Answer:

Explanation:

Angle for the nth dark fringe of light = n * wavelength of light / slit distance

So the angle for the 3rd fringe = 3 * 725 nm /  0.0335 mm

= 3 * 725*10^(-9) /  0.0335*10^(-3)

= 0.0649 rad

= 0.0649 * 360 / 2pi degree

= 3.72 degree

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Fudgin [204]

1.7 x 10^2 N

or 166 N

First you find the vertical component of the weight, which is 9.8*40, (g*m), which is 392 N. You then find the angle between that and the slope, which is 90-25, which is 65. You then multiply the vertical weight by cos(65), to find the component of that that is parallel to the slope. You get 165.666 N

3 0
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Advocard [28]

Answer:

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The best way to cool soft and thick foods (such as beans, sauce or chili) when using the refrigerator is?
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3 0
2 years ago
Read 2 more answers
A ball dropped from a window strikes the ground 2.76 seconds later. How high is the window above the ground
sweet [91]

Answer:

37.33m

Explanation:

Using the equation of motion

S = ut + 1/2gt^2

Time t = 2.76secs

g = 9.8m/s^2

S = 0 + 1/2(9.8)(2.76)^2

S = 4.9*7.6176

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Hence the window is 37.33m above the ground

7 0
3 years ago
The kinetic friction force between a 60.0-kg object and a horizontal surface is 50.0 N. If the initial speed of the object is 25
Vikki [24]

Answer:

375 m.

Explanation:

From the question,

Work done by the frictional force = Kinetic energy of the object

F×d = 1/2m(v²-u²)..................... Equation 1

Where F = Force of friction, d = distance it slide before coming to rest, m = mass of the object, u = initial speed of the object, v = final speed of the object.

Make d the subject of the equation.

d = 1/2m(v²-u²)/F.................. Equation 2

Given: m = 60.0 kg, v = 0 m/s(coming to rest), u = 25 m/s, F = -50 N.

Note: If is negative because it tends to oppose the motion of the object.

Substitute into equation 2

d = 1/2(60)(0²-25²)/-50

d = 30(-625)/-50

d = -18750/-50

d = 375 m.

Hence the it will slide before coming to rest = 375 m

6 0
3 years ago
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