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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 magnitude and direction of acceleration of body both are constant will the body moves in straight line
Unit of Charges: The S.I unit of charge is Coulumb represented by "c".
Experiencing a constant horizontal 1.10 m/s wind, a hot-air balloon ascends from the launch site at a constant vertical speed of 2.70 m/s. At a height of 202 m, the balloonist main
Q. Why X-rays are not used in microscopes? 1) The wavelength of X-rays is slighter than that of the visible light. 2) X-rays can't be focussed as visible radiations are foc
how to make a ray diagram ?? and what are f, p ?? and what is refraction index?????
Faraday's law (M. Faraday): The line integral of the electric field about a closed curve is proportional to the instant time rate of change of the magnetic flux by a surface l
concave grating and rowland''s mounting theory
Explain the formation of diffraction pattern due to plane transmission grating. Describe the meaning of missing spectra in the diffraction pattern.
Consider the 2D shape below. Draw a possible configuration of nodes and cells (at least 15) that could be used to solve for the temperature distribution. Provide equations that wou
Q. Action to be made if the resistance to earth of earth electrode is high? Ans: Earth resistance lies upon soil conductivity. To reduce earth resistance dig around the earth
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