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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 equiconvex lens has the radius of one curved surface is 0.12 m and focal length of 0.10 m. Determine the refractive index of the material of the convex lens.
Draw the symbolic representation of a (i) p-n-p, (ii) n-p-n transistor. Why is the base region of transistor thin and lightly doped? With proper circuit diagram, show the biasin
Can you explain in single slit diffraction intensity of 1 st secondary maximum is less than that of principal maximum by how many times?
Besides solid, liquid, and gas, what is the fourth form of matter? Ans: The fourth form of matter is plasma.
The rate of modification of thermo emf with the change in the temperature of the hot junction is known as thermoelectric power.
new ideas for physics projects ?
Pulmonary embolism: - It is a blood clot blocking a major artery in the lunge ,it represent a serious medical problem. - About 100 MBq of lumpy 99mTc –is injected into a vein .T
describe the principle, construction and working of Michelson Interferometer.
A test tube holder An appropriate test tube holder can be made by bending strong spring wire made of iron or brass into the shape shown in the diagram. Wire from a coat hanger
Consider the temperature distribution in a 1D flat plate, insulated at x = L and exposed to convective heat transfer at x = 0. On the axes below, sketch what the distribution looks
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