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Explain different phasors of liquid crystal.
engineering physics updated 3.9 years ago by krithikkm200 • 10
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526
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In what sense real crystals differ from ideal crystals? Explain the point defects in crystals.
engineering physics updated 3.9 years ago by krithikkm200 • 10
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Define Reverberation time. Explain how the reverberation time is affected by (i) size (ii) Nature of it's wall surface (iii) Audience
engineering physics updated 3.9 years ago by krithikkm200 • 10
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Explain Alternate mode and Chop mode in a dual trace oscilloscope.
engineering physics updated 3.9 years ago by krithikkm200 • 10
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978
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Explain Kevin's double bridge and its application in very low resistance measurement.
engineering physics updated 3.9 years ago by phenjoisilab • 0
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Explain kelvin's double bridge and its application in very low resistance measurement.
engineering physics updated 3.9 years ago by rjran106 • 20
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Lasers and Optical fibers
engineering physics updated 3.9 years ago by yerasylmakulbe671 • 10
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With a neat energy level diagram describe the construction and working of He-Ne laser. What are its merits and demerits ?
engineering physics updated 4.0 years ago by bhaskar12082000 • 0
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What is the fundamental principle of a Hologram? How is it produced and how is the image constructed by it?
engineering physics updated 4.0 years ago by bhaskar12082000 • 0
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674
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Define power and energy and explain working of an energy meter.
engineering physics updated 4.0 years ago by bhaskar12082000 • 0
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Discuss formation of copper pairs and energy gap in superconductor on the basis of BCS theory.
engineering physics updated 4.0 years ago by krithikkm200 • 10
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Cal the numerical aperture of the fiber with core index $\mu_1 =1.61$ and cladding index $\mu_2=1.55$
engineering physics updated 4.0 years ago by krithikkm200 • 10
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3.0k
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Comment on colours in a soap film of sunlight
engineering physics updated 4.0 years ago by krithikkm200 • 10
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Derive the formula for angle of minimum deviation for the prism
engineering physics updated 4.0 years ago by krithikkm200 • 10
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A stick of mass density $\rho$ per unit length rests on a circle of radius $R$ which makes an angle $\theta$ with horizontal and tangent to the circle at its upper end. Find the friction between them?
engineering physics updated 4.0 years ago by krithikkm200 • 10
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Derive the formula $E=mc^2$ from the standard equation of kinetic energy?
engineering physics updated 4.0 years ago by krithikkm200 • 10
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What is hysteresis? Draw a hysteresis loop for ferromagnetic material and explain the various important points on it. What is the technical significance of the area enclosed by the loop?
engineering physics updated 4.0 years ago by phenjoisilab • 0
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Determine the lattice constant for FCC lead crystal of radius 1,746 A* and also find the spacing of (2 2 0) plane.
engineering physics updated 4.0 years ago by chetana1375 • 20
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Define and explain Bulk Modulus.
engineering physics updated 4.0 years ago by 19bcs3866 • 10
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811
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Define solenoidal vector. Hence prove that $( \overline {F} = \dfrac{\overline{a}\times\overline{r}}{r^n} )$ is a solenoidal vector.
engineering physics updated 4.0 years ago by abhi022mahajan • 0
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817
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An electron is accelerated through a potential difference of 5 kV and enters a uniform magnetic field of 0.02 Wb/m${2}$ acting normal to the direction of electron motion.
engineering physics updated 4.0 years ago by 19bcs3866 • 10
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Draw the schematic diagram of TEM and explain its construction and working.
engineering physics updated 4.0 years ago by phenjoisilab • 0
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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
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What are different types of pumping and pumping schemes. Why four level pumping schemes is superior to three level. Why two-level pumping scheme is not suitable?
engineering physics updated 4.0 years ago by phenjoisilab • 0
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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
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