A given crystalline material has 3 atoms per lattice point. (i) How many acoustic phonon modes are there? (ii) How many of these are transverse, and how many longitudinal?

Q: =-7 cos(2t + 40°) = 4 sin(10f + 10°) J = 7/220°, (b) I = 4/

A: Given: To find the transform of the sinusoids to the phasors as,

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A: GivenYou decide to circumvent the tyranny of the twelve even-tempered semitone musical scale of…

Q: QUESTION 24 For a diatomic linear chain, the phonon dispersion relation (k) has two branches…

A: CONCEPT:

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A: (a) By using wavelength of 1.64 kHz, λ=3431.64×103=0.209 m diameter, D=0.437 m

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A:

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Q: Consider a diatomic lattice containing two identical atoms (i.e., mi = m2) with an interatomic…

A: Given, a=2.5×10-10 mλp= 10-9vs= 3×103 m/sω+2=2K1M1+1M2ω-2=2KM1+M2k2a2

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A: Solid state.

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Q: (2) The pipes in organs are much bigger than our tube. What would be the fundamental frequency of an…

A: Approach to solving the question: Detailed explanation: Examples: Key references:

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A: The sinusoidal wave expression given is,

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A:

Q: Two waves Y1-6.3 sin (3297 t-0.0765 x + 8x) and Y2-8.3 sin (3297 t-0.0765 x + 9%) interfere.…

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A:

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A: Given, L= 0.4m v= 138.3 m/s n= 3 (since, third harmonic)

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Q: Ex. 24: Two wires have lengths of 30 cm and 40 cm. Radii in the ratio 4 : 5 and densities in the…

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A: Given, L = 350 cm = 3.5 m And v = 30 m/s n = 1 for first harmonic

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Q: , the E and H are n. Are E and H always in phase? Why? perpendicular to each other ar

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Q: Two sinusoidal waves of wavelength A = 2/3 m and amplitude A = 6 cm and differing with their phase…

A: Given

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Q: A 100 Watt incandescent bulb is about 5.0% efficient at converting electrical energy into radiant…

A: Given that: P=5.0 Wr=8.0 mθ=30°

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Q: 476.5cos(wt-3y)a O 20 coswt 2y) a

A: Solution:

Q: A uniform 165 N bar issupported horizontally by two identicalwires A and B (Fig. ). Asmall 185 N…

A: Given: Weight of the bar =165 N Weight of the cube=185 N The mass of each wire=0.0055 kg Length of…

Q: Two sinusoidal waves of wavelength A = 2/3 m and amplitude A = 6 cm and %3D %3D differing with their…

A: General form of wave,                 Y1= A sin (kx - wt).......... (1)                Y2= A sin (kx…