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Anna007 [38]
3 years ago
11

One wave of 1 m amplitude meets another wave of 2 m amplitude. If they are exactly out of phase, what is the magnitude of the ne

w amplitude
Physics
1 answer:
MatroZZZ [7]3 years ago
6 0

Answer:

1 m

Explanation:

  • Assuming both waves have the same frequency, and speed, this means that they have the same wavelength.
  • If they are exacty out of phase, one will be at its maximum positive amplitude (crest), while the other will be at its maximum negative amplitude (trough), which means that the magnitude of the new amplitude will be the difference between both amplitudes, i.e., 1 m.
  • If both waves had the same amplitude, the new amplitude would be just zero.
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3 years ago
The interference pattern seen when light passes through narrow, closely spaced slits, is due to
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<h2>Answer: Diffraction</h2><h2 />

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4 years ago
Light of wavelength 500 nm is incident perpendicularly from air on a film 10-4cm thick and of refractive index 1.375. Part of th
Marysya12 [62]

Answer

given,

wavelength (λ)= 500 n m

thickness of film= 10⁻⁴ cm

refractive index = μ = 1.375

distance traveled is double which is equal to 2 x 10⁻⁴ cm

a) Number of wave

     N = \dfrac{d}{\mu\lambda}

     N = \dfrac{2 \times 10^{-6}}{1.375\times 500 \times 10^{-9}}

           N = 2.91

           N = 3

b) phase difference is equal to

Reflection from the first surface has a 180° (½λ) phase change.

There is no phase change for the 2nd surface reflection and there is no phase difference for the 2nd wave having traveled an exact whole number of waves.

net phase difference = 180^0\times \dfrac{3}{2}

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6 0
3 years ago
A basketball rolls without slipping (starting from rest) down a ramp. If the ramp is sloped by an angle of 4 degrees above the h
slavikrds [6]

Answer:

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Explanation:

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a = 9.8 m/s²sin4(1 + 2/3MR²/MR²)

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To find its speed v after rolling for 60 m, we use

v² = u² + 2as where u = initial speed = 0 (since it starts from rest), s = 60 m

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4 0
3 years ago
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Answer:

nope don't think so

Explanation:

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3 0
3 years ago
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