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During a test, the car, moves in a straight line such that its velocity is defined by v=0.3 (9t2 + 2t) where 't' is in seconds. Determine the position and acceleration when t=3 sec. take at t=0, x=0.
engineering physics updated 2.1 years ago by DevarenjiniP • 3.1k
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A vertical lift of total mass 750 kg acquires an upward velocity of 3m/s over a distance of 4m moving with constant acceleration starting from rest. Calculate the tension in the cable.
engineering physics updated 2.1 years ago by DevarenjiniP • 3.1k
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428
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Explain various types of errors in measurement in detail.
engineering physics updated 2.1 years ago by DevarenjiniP • 3.1k
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590
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Explain various sources of errors in measurement system
engineering physics updated 2.1 years ago by RakeshBhuse • 3.2k
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State and explain Biot - savart's Law
engineering physics updated 2.2 years ago by sagarkolekar ★ 11k
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Explain how the reverberation time is affected by (i) size (ii) nature of wall surface (iii) audience in an auditorium.
engineering physics updated 2.2 years ago by pedsangini276 • 4.7k
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Draw a neat labelled Energy band diagram to show the variation of Fermi Level with doping concentration in N-Type semi-conductors.
engineering physics updated 2.2 years ago by pedsangini276 • 4.7k
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Find the percentage of the total flow through each pipe when placed in parallel and the ratio of H to h, for the following question
engineering physics updated 2.2 years ago by RakeshBhuse • 3.2k
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Write three distinct differences between ionic and oriental polarization.
engineering physics updated 2.2 years ago by iharshvardhan2827 • 20
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For an intrinsic semiconductor show that the Fermi level lies in the center of the forbidden energy gap.
engineering physics updated 2.2 years ago by pedsangini276 • 4.7k
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Explain orientational polarization with suitable diagram and write the mathematical expression of orientational polarizability.
engineering physics updated 2.2 years ago by pedsangini276 • 4.7k
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Calculate the number of atoms per unit cell of a metal having the lattice parameter 2.9 A and density 7.87 gm/cm3.
engineering physics updated 2.2 years ago by pedsangini276 • 4.7k
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Calculate the critical radius ratio of an ionic crystal in ligancy 4 configuration.
engineering physics updated 2.2 years ago by pedsangini276 • 4.7k
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454
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A class room has dimension 20 x 15 x 10 m3, the reverberation time is 3 sec. calculate total absorption of its surfaces and average absorption coefficient.
engineering physics updated 2.2 years ago by pedsangini276 • 4.7k
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Mention only one solution for each of the following acoustical problems in a hall. (i) Echo (ii) Dead spot and (iii) Inadequate loudness
engineering physics updated 2.2 years ago by pedsangini276 • 4.7k
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362
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Draw the diagrams only (fully labelled and self explanatory) to show the variation of Fermi energy with (i) Temperature and (ii) Impurity concentration at high level, for an n-type semiconductor.
engineering physics updated 2.2 years ago by pedsangini276 • 4.7k
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351
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Explain Critical Configuration & find the Critical radius ratio of an ionic crystal for ligancy 6.
engineering physics updated 2.2 years ago by pedsangini276 • 4.7k
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850
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Explain the concept of hole in a semiconductor
engineering physics updated 2.2 years ago by pedsangini276 • 4.7k
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381
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Write five distinct differences between Frenkel and Schottky defect.
engineering physics updated 2.2 years ago by pedsangini276 • 4.7k
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The resistivity of intrinsic InSb at room temperature is 2 x 10-4? cm. if the mobility of electron is 6m2/V-Sec and mobility of hole is 0-2 m2/V-Sec. calculate its instrinsic carrier density.
engineering physics updated 2.2 years ago by pedsangini276 • 4.7k
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455
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An Ultrasonic sound wave is used to detect the position of defect in a steel bar of thickness 50 cm. if the echo times are 40 and 90 ?-sec. Locate the position of defect.
engineering physics updated 2.2 years ago by pedsangini276 • 4.7k
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593
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Write the relation between polarization and dielectric susceptibility and the relation between dielectric susceptibility and dielectric constant.
engineering physics updated 2.2 years ago by pedsangini276 • 4.7k
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Calculate P.F. for Chromium having BCC structure. Given density 5.98 gm/cc, atomic weight 50.
engineering physics updated 2.2 years ago by pedsangini276 • 4.7k
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321
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Explain origin of electronic, ionic and oriental polarization and temperature dependence of respective polarizability.
engineering physics updated 2.2 years ago by pedsangini276 • 4.7k
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344
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Find out critical radius ratio of an ionic crystal in ligancy 6 configuration. What is maximum size of cation in ligancy 6 configuration when radius of anion is 2.02 A
engineering physics updated 2.2 years ago by pedsangini276 • 4.7k
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