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10
votes
1
answer
131k
views
1
answer
Derive the formula for angle of minimum deviation for the prism
engineering physics updated 2.3 years ago by pedsangini276 • 4.7k
8
votes
1
answer
80k
views
1
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Explain with neat diagram construction and working of solar cell.
engineering physics updated 7.8 years ago by teamques10 ★ 64k
10
votes
1
answer
78k
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1
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Explain the principle, construction & working of a LED.
engineering physics updated 7.4 years ago by teamques10 ★ 64k
6
votes
1
answer
76k
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1
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Explain formation of energy bands in solids and explain classification on the basis of energy band theory.
engineering physics updated 2.3 years ago by sagarkolekar ★ 11k
7
votes
1
answer
70k
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1
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State the Hall effect. Derive the expression for Hall coefficient with neat diagram.
engineering physics updated 4.0 years ago by teamques10 ★ 64k
9
votes
2
answers
66k
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2
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Obtain the condition for maxima and minima due to interference in a wedge shape film observed in reflected light. How is the interference pattern in wedge shaped film?
engineering physics updated 2.3 years ago by pedsangini276 • 4.7k
6
votes
1
answer
65k
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1
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Explain the formation of barrier potential in P-N junction.
engineering physics updated 7.8 years ago by teamques10 ★ 64k
10
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1
answer
62k
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1
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What is piezoelectric effect? Explain the working of a piezoelectric oscillator used to produce ultrasound.
engineering physics updated 7.8 years ago by teamques10 ★ 64k
13
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1
answer
58k
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1
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What is Hall Effect? Derive expression for Hall voltage.
engineering physics updated 4.9 years ago by teamques10 ★ 64k
2
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1
answer
55k
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1
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What are soft and hard magnetic materials? State the properties and applications
engineering physics updated 6.1 years ago by teamques10 ★ 64k
7
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1
answer
49k
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1
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With energy band diagram ,explain the variation of fermi energy level with temperature in extrinsic semiconductor.
engineering physics updated 4.0 years ago by teamques10 ★ 64k
4
votes
1
answer
48k
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1
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Differentiate between soft and hard magnetic materials.
engineering physics updated 7.8 years ago by teamques10 ★ 64k
-2
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1
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41k
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1
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What is Hologram? Explain the construction and reconstruction of Hologram. How is holography different than photography.
engineering physics updated 2.3 years ago by pedsangini276 • 4.7k
1
vote
1
answer
41k
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1
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Explain the formation of depletion region in p-n junction.
engineering physics updated 7.8 years ago by teamques10 ★ 64k
5
votes
1
answer
41k
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1
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A diffraction grating have 4000 lines per cm is illuminated normally by light of wavelength 5000 $\mathring{A}$. Calculate its dispersive power in third order spectrum.
engineering physics updated 18 months ago by sagarkolekar ★ 11k
1
vote
1
answer
40k
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1
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Obtain an expression for fringe width in the interference pattern of wedge shape film. How this phenomenon is used to determine thickness of thin paper.
engineering physics updated 2.3 years ago by pedsangini276 • 4.7k
6
votes
1
answer
39k
views
1
answer
In the Newtons ring experiment, determine the diameter of the $20^{th}$ ring if the diameters of the $4^{th}$& $12^{th}$ rings are 0.4 & 0.7 cm respectively.
engineering physics updated 2.3 years ago by pedsangini276 • 4.7k
1
vote
1
answer
38k
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1
answer
Describe principle, construction and working of magnetostriction oscillator to produce ultrasonic waves.
engineering physics updated 7.8 years ago by teamques10 ★ 64k
1
vote
1
answer
36k
views
1
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Draw the energy band diagram of p-n junction diode in forward and reverse bias condition.
engineering physics updated 4.0 years ago by teamques10 ★ 64k
3
votes
1
answer
33k
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1
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Define: drift current, diffusion current and mobility of charge carriers.
engineering physics updated 7.8 years ago by teamques10 ★ 64k
4
votes
1
answer
33k
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1
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State the acoustic requirement of good auditorium. Explain how these requirements can be achieved.
engineering physics updated 7.8 years ago by teamques10 ★ 64k
0
votes
1
answer
33k
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1
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Define dispersive power of a grating. write an expression for dispersive power of grating.
engineering physics updated 2.3 years ago by pedsangini276 • 4.7k
3
votes
1
answer
30k
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1
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What is V number? What is its significance. Distinguish between single mode and multimode fiber?
engineering physics updated 2.3 years ago by pedsangini276 • 4.7k
4
votes
1
answer
29k
views
1
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Explain absorption, spontaneous and stimulated emission of radiation. Discuss Einsteins coefficient and derive the relation between them?
engineering physics updated 2.3 years ago by pedsangini276 • 4.7k
1
vote
1
answer
29k
views
1
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Draw the unit cell of HCP. What is the coordination number, atomic radius, and effective number of atoms per unit cell? Also calculate the packing factor.
engineering physics updated 7.8 years ago by teamques10 ★ 64k
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