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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.
(1) F or supplying power from on alternating current power grid to equipment which uses a different voltage. (2) Electrical power transmission over long dist
In a young's double slit experiment the screen is 1 meter away from the slit, the separation between the slits is 1mm and the distance between the 1st and 4th fringe is 1.2mm. Find
what is acqustic phenomenon?
Explain the Thermal Equilibrium Thermal Equilibrium occurs when one or more substances reach a common temperature by exchanging heat. When two substances come into thermal contac
The phase of weightlessness may be observed in the following situations: (i) When objects fall freely under gravity : For example, a lift goes down freely, or an airship showing
At 200.0 K, germanium has 1.16 x 10 10 thermally liberated charge carriers/cm 3 . If it is doped with 1 As atom to 525,000 Ge atoms, what is the ratio of doped carriers to the
An unknown tuning fork is sounded along w/ a tuning fork whose frequency is 256Hz and a beat frequency of 3 Hz is heard. What i the frequency of the unknown tuning fork?
mathimatical form
a) A charge of 3X10 -4 Coulomb at P (1, 2, 3) and a charge of -10 -4 Coulomb at N (2, 0, 5) in a vacuum. We desire to measure the force exerted on second charge beacuse of firs
What is dispersion? Dispersion within optics consider as the change in phase velocity of an electromagnetic wave along with wavelength. Conversely, when there is a variation o
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