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Engineering Physics

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4
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A uniform metal disc of radius $R$ is taken and out of it a disc of diameter $\displaystyle\frac{R}{2}$ is cut-off from the end. Find the center of mass of remaining part?
engineering physics updated 4.2 years ago by 560sh246 • 10
4
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Piezo electric effect and its application.
engineering physics updated 4.2 years ago by thapad619 • 0
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A body is projected vertically upwards. If $t_1$ and $t_2$ be the instants at which it is at a height $h$ above the point of projection, while ascending and descending respectively.Then find $h$ !!
engineering physics updated 4.2 years ago by penny • 0
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What are nano materials? Mention two reasons why properties of materials differ at the nano scale.
engineering physics updated 4.2 years ago by 19bcs3866 • 10
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Classify solids on the basis of energy band diagram.
engineering physics updated 4.7 years ago by teamques10 ★ 70k
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Crystal oscilator
engineering physics updated 4.2 years ago by 560sh246 • 10
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Voltage Regulators
engineering physics updated 4.2 years ago by kollisaikeerthi12101999 • 0
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Find the work done in moving a particle in a force field given by \[\bar{F}=3xy\ \hat{i}-5z\hat{j}+10x\hat{k}\] along the curve x=t2+1, y=2t2, z=t3 from t=1 to t=2
engineering physics updated 4.2 years ago by u903 • 0
3
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Describe various types of sweeps used in CRO
engineering physics updated 4.2 years ago by rucha6862 • 0
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Draw and Explain the block diagram of general purpose CRO
engineering physics updated 4.2 years ago by yerasylmakulbe671 • 10
3
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Calculate the number of atoms per unit cell of a metal
engineering physics updated 9.5 years ago by teamques10 ★ 70k
5
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Explain with neat diagram construction of Braggs X-ray spectrometer. Write the procedure to determine crystal structure.
engineering physics updated 9.5 years ago by teamques10 ★ 70k
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Explain Hall Effect in metal. Derive the formulae to determine the density and mobility of electrons.
engineering physics updated 9.5 years ago by teamques10 ★ 70k
2
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What is Fermi level in semiconductor? Show that in intrinsic semiconductor Fermi level is always at the middle between the forbidden energy gaps.
engineering physics updated 9.5 years ago by teamques10 ★ 70k
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Fermi Energy for silver is 5-5eV. Find out energy for which the probability of occupancy at 300 K is 0.9.
engineering physics updated 9.5 years ago by teamques10 ★ 70k
3
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16k
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Calculate magnetic flux density and magnetization in copper.
engineering physics updated 2.2 years ago by phenjoisilab • 0
10
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1
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66k
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What is piezoelectric effect? Explain the working of a piezoelectric oscillator used to produce ultrasound.
engineering physics updated 9.5 years ago by teamques10 ★ 70k
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Describe principle, construction and working of magnetostriction oscillator to produce ultrasonic waves.
engineering physics updated 9.5 years ago by teamques10 ★ 70k
2
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1
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19k
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1
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Zn has HCP structure. The nearest neighbor distance is 0.27nm. The atomic weight of Zn is 65.37. Calculate the volume of unit cell, density and atomic packing fraction of Zn.
engineering physics updated 9.1 years ago by teamques10 ★ 70k
11
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85k
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Explain the principle, construction & working of a LED.
engineering physics updated 9.1 years ago by teamques10 ★ 70k
6
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1
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77k
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Explain formation of energy bands in solids and explain classification on the basis of energy band theory.
engineering physics updated 4.0 years ago by phenjoisilab • 0
2
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Explain the condition for amplification of light. What is the importance of metastable state and pumping in LASER?
engineering physics updated 4.0 years ago by krithikkm200 • 10
4
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1
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Write the role of resonant cavity in the operation of LASER?
engineering physics updated 4.0 years ago by krithikkm200 • 10
4
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1
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White light falls normally on a soap film of thickness $5 \times 10^{-5}$ cm & of RI 1.33. Which wavelength in the visible region will be reflected most strongly?
engineering physics updated 4.0 years ago by krithikkm200 • 10
3
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Why is LED not used in long distance fibre optics communication?
engineering physics updated 4.2 years ago by yashbeer ★ 11k
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