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Which of the subsequent is a principal ray for the case of an actual physical object and a convex (converging) lens? Indicate all that apply.
Ans:
In the thin lens approximation utilize to determine the nature orientation and position of the image formed by a lens there are 3 principle rays from any point on the object. For expediency we use an object which is an upright arrow perpendicular to the axis of the lens whose tail is on the principle axis of the lens and we chose the point from which the principle rays originate to be the head of the arrow.
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If the angle of incidence is 60 degrees,then what is the angle of deviation?
some details about wave
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I think it is same as the apex angle of the prism or the angle of the prism. since it decides the angle of deviation as i+e=D+A(angle of the prism),D=deviation.
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