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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.
Explain Cement concrete Cement concrete is a mixture of cement, sand, pebbles or crushed rock and water, which where placed in the skeleton of forms and permitted to cure becom
What are different pumping mechanisms in LASERS?
It is the need of elastic strength of a substance when subjected to repeated stresses and strain. If the substance is reserved undisturbed for some time, the previous properties ar
what is plasma and explan in simple word
Average and Instantaneous Acceleration: Average acceleration is explained as the change in velocity over a given time interval. As, The instantaneous acceleration of g
At what angle should a body be projected with a given velocity 24m/s just to pass over the obstacle 14m high at a given distance of 24m. Solution: 14=24xtan(θ)-(g*)(24 2
Loschmidt constant; Loschmidt number; NL: The number of particles per unit volume of an ideal gas at standard temperature & pressure. It has the value 2.687 19 x 10 25 m -3 .
Q. A twelve-slit strobe disc is rotated at the max stopping frequency for a vibrating object. The strobe is rotated at 4.0 Hz. (a) Evaluate the period of the vibrating object?
The weighted rod floats with 6 cm of its length under water [density 1000 kg/m3]. What length is under the surface when the rod floats in brine [density 1200 kg/m3].
#what are practical examples of like and unlike parallel forces?#
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