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3.3k
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1
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Derive Bragg's equation. Explain construction and working of Bragg's Spectrometer.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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862
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Define Piezoelectric effect. Explain construction and working of piezoelectric Oscillator.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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1.3k
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Explain the characteristic X-ray spectra.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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707
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1
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Explain cavitation effect and its applications.
fluid mechanics updated 4.9 years ago by teamques10 ★ 70k
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3.8k
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Explain use of CRO to determine phase difference between two signals.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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5.1k
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Define superconductors, critical temperature, critical magnetic field.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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544
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Draw the following with respect to cubical unit cell {1 2 3}, {2 0 0}, {2 3 0}
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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618
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What is the difference between sound intensity and loudness?
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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511
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Explain the absorption coeficient of a hall. Calculate the change in intensity level if the intensity of sound increases 1000 times its original intensity.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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863
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Explain ionic polarization and obtain polarizability.
wave theory propagation updated 4.9 years ago by teamques10 ★ 70k
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1
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1.8k
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Derive Bragg's law. Calculate the glancing angle on the plane (100) for a crystal of rock salt (a = 2.125 A0 .Consider the case of 2nd order maximum and A = 0.592 A0.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
0
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798
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Explain the formation of energy band in solids. With neat energy band diagram explain extrinsic semiconductors.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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1.4k
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State the terms : magnetostriction effect; piezoelectric effect
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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636
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1
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Define dielectrics, electric dipole, polarizability.
wave theory propagation updated 4.9 years ago by teamques10 ★ 70k
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1.6k
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Mobility of holes is 0.025 m2 /V-sec What would be the resistivity of P-type silicon . if the Hall coefficient of the sample is 2.25 x 10-5 m3 /C ?
analog electronics updated 4.9 years ago by teamques10 ★ 70k
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1.6k
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What is the probability of an electron being thermally excited to conduction band in silicon at 20oC. The band gap energy is 1.12eV; Boltzmann constant is 1.38 x 10-23 JIk.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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909
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Explain term lattice parameters of cubic crystal.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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1.2k
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What is piezoelectric effect. Explain the working of piezoelectric Oscillator used to produce ultrasonic wave.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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1.1k
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1
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How is a p-n junction diode used to generate a potential difference in photovoltaic solar cell ?
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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1.5k
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Explain difference between three liquid crystals w.r.t the order in arrangement of molecules with the help of diagram. Which property of liquid crystal is used for display?
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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1.7k
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Define reverberation time . Write sabine's formula explaining each term. What are the factors which determine average absorption co-efficient of a material
engineering physics updated 4.9 years ago by teamques10 ★ 70k
1
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1
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6.0k
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1
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Explain the principle, construction and working of a magnetostriction oscillator to produce ultrasonic waves.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
0
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1
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2.7k
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1
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In an n-type semiconductor the fermi level lies 0.4eV below conduction band. If concentration of donor atom is doubled, find the new position of the Fermi Level w.r.t. the conduction band.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
0
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930
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1
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Derive Bragg's law. Explain why x-rays and not ? rays are used for crystal structure analysis. What data about crystal structure can be obtained from the x-ray diffraction pattern of a crystal?
engineering physics updated 4.9 years ago by teamques10 ★ 70k
0
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2.5k
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Calculate the change in intensity level the intensity of sound increases 1000 times its original intensity.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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