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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.
give applications of resonance
As the temperature of the air enhances from 0 degrees C to 20 degrees C, the wavelength of a sound made by a tuning fork of fixed frequency does which of the following? Does th
The mass of an atom is constituted mainly by: (1) Neutron and neutrino (2) Neutron and electron (3) Neutron and proton (4) Proton and electr
Aim : To obtain the half-life of two radioisotopes by graphical means, using data from a simulated experiment. Theory : Half-life( t ½ ) is the time it takes any particular ma
It having of an evacuated glass or quartz bulb having anode A and cathode C. The cathode is semi-cylindrical solid on which a thin layer of photo-sensitive material is coated.
what is radiation
What are the thomson coefficients for copper and constantan?
explain the negative result of speciale theory of relativity
N-Type Substances: When a small quantity of Arsenic or Phosphorous (group VA elements) is added to silicon or Germanium, it becomes good conductor of negative charges, such a s
Explain the Lenz Law An induced current always flows in a direction so that its electromagnetic field opposes the change in magnetic flux producing it. This is embodied in the
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