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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.
can a charge by any means, today, travel from a source to a sink wirelessly? Is there any technology to support it?
A cheetah can reach a top speed of 27.8 m/s in 5.2 s. What is the cheetah's average acceleration?
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Q. What are uses of ultra-violet radiations? Uses of ultra-violet radiations: (i) They are utilized to destroy the bacteria and for sterilizing surgical instruments.
Convex lens can be used as a magnifying glass. When an object that is 15.0 cm from the lens has an image that is exactly 55 times the size of the object, what is the focal leng
create and sketch an equipment to conserve energy
why newtons 2nd law is called the real law of motion?
Illustrate Examples of systems out of equilibrium Examples of systems out of equilibrium: A) a stone thrown upwards that is at its highest point; B) a plane diving downwa
Q. How will you measure thickness of thin silicon-chip using Bi-prism experiment? Derive the formula used. When a thin silicon chip, thin film of soap bubble etc. is introduc
CPH has mass and velocity. What is its De Broglie wavelength? Answer; since I told before, the wavelength of CPH is equal of electromagnetic wavelength when it is growing.
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