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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.
The potential because of a continuous charge distribution is the sum of potentials of all the infinitesimal charge elements in which the distribution may be separated i.e.,
Q. Explain the steps to the scientific notation? Answer:- To write in scientific notation you must first move the decimal point of the number to where the number is betwee
#question.An experminet to prove that a substance is ferrmoanetic
Starting from Maxwell's electromagnetic equation in free space, Get Poynting theorem.
Q. Why does the sky appear blue in colour? As-per to the Rayleigh's scattering law the shorter wavelengths are scattered much more than the longer wavelengths. The blue look o
what is meant by body in physics
deduce an expression for pressure at any point inside a liquid.
What is the wavelength of electromagnetic waves of frequency 5 x 1019Hz in free space? Give its two applications.
A sugar solution was formed by adding 80 gm of cane sugar into one liter of water. By observation it is found that it gave an optical rotation of 9.9 0 , when filled
In certain ranges of a piano keyboard, more than one string is tuned to the same note to provide extra loudness. For example, the note at 110 Hz has two strings at this frequency.
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