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Light is shined into a glass rod. To guarantee the total internal reflection (TIR) happens to all the possible rays, what is the minimum index of refraction n for the glass?
Hint: To make sure all rays TIR inside the rod, you just need to consider an extreme case, i.e., the incident angle q1 (on the top surface of glass rod) equals to 90o.
An ideal Brayton cycle uses air as a working fluid. The air enters the compressor at 101 kpa and 37 C. The pressure ratio of the compressor is 12:1, and the temperature of the air
Special Theory of Relativity deals with the relativity of motion and of rest is called theory of relativity. In broad sense it divides into two parts (1) GTR (General Theory o
Q. Compute the mutual inductance between two coils when a current of 4 a changing to 8 a in 0.5 s in one coil induces an emf of 50 mV in the other coil. Induce emf e = -
Work: In its technical sense, work is the product of force and distance, and work is done only when a force causes movement. We can see this by the formula: Work = Force x
Define about the set-up of Helium-Neon Laser. The laser radiations along with higher coherence, higher directionality and higher monochromacity can be obtained from this. But,
Explain the terms (i) magnetic declination and (ii) angle of dip at a given place.
Charles' law (J.A.C. Charles; c. 1787) At constant pressure the volume of ideal gas is proportional to the thermodynamic temperature of that gas.
The integral in Ampere's Law is an integral. Answer: The integral is an integral along (over) a closed path (curve).
SMALL ALKALINE CELLS: Hermetically sealed Ni-Cad cells are produced in the same size and shape as their primary counterparts. They are small, portable and maintenance free, but
Standing Wave Formation Below given animation depicts two waves moving by a medium in opposite directions. The blue wave is moving to the right and the green wave is moving to
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