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Vinil7 [7]
3 years ago
14

A physics professor wants to perform a lecture demonstration of Young's double-slit experiment for her class using the 633-nm li

ght from a He-Ne laser. Because the lecture hall is very large, the interference pattern will be projected on a wall that is 4.0 m from the slits. For easy viewing by all students in the class, the professor wants the distance between the m
What slit separation is required in order to produce the desired interference pattern?
d=________m
Physics
1 answer:
Alexeev081 [22]3 years ago
6 0

Note: if the professor wants the distance between the m = 0 and m = 1 maxima to be 25 cm

Answer:

d = 1.0128×10⁻⁵m

Explanation:

given:

length L = 4.0m

maximum distance between m = 0 and m = 1 , y = 25cm = 0.25m

wavelength λ = 633nm = 633×10⁻⁹m

note:

dsinθ = mλ (constructive interference)

where d is slit seperation, θ is angle of seperation , m is order of interference , and λ is wavelength

for small angle

sinθ ≈ tanθ

d (\frac{y}{L})  = mλ

d (\frac{y}{L}) = (1)(633nm)

d(\frac{0.25}{4} ) = (1)(633nm)

d = 1.0128×10⁻⁵m

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Answer: 1666J

Explanation:

Given that,

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7 0
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Question 20
fenix001 [56]

Answer:

  (b)  Water

Explanation:

The density of the liquid is found by dividing its mass by its volume.

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<h3>mass</h3>

The mass of the liquid is the difference in mass between the full and empty graduated cylinder:

  liquid mass = (145 g) -(45 g) = 100 g

<h3>volume</h3>

The cylinder is said to contain 100 mL of the liquid, so that is the volume of interest.

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8 0
2 years ago
A 0.086 kg bullet is fired at 266 m/s and collides with a 6.3 kg wooden block that is initially stationary. The bullet embeds in
olga2289 [7]

Answer:

The value of speed of wooden block at the instant after the collision   V_f = 262.41  \frac{m}{s}

Explanation:

Given data

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Velocity of bullet V_0 = 266 \frac{m}{s}

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Put all the values in above formula we get

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This is the value of speed of wooden block at the instant after the collision.

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kirill [66]

Answer:

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