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Question Option1 Option2 Option3 Option4 Answer Total internal reflection can occur when lights passes from: a denser to rarer medium a rarer to denser medium one medium to another of equal refractive index medium to another of equal absorption...
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Velocity of Light by Foucault’s method
Foucault's Method of Determination of Velocity Of Light:-
The schematic diagram of Foucault’s method to determine the velocity of light is as shown in figure. It consist of three mirror, such as plane & concave mirror, partially silvered and convex lens as shown in figure. Let us consider a point ‘Q’ on the concave mirror from which light reflected back to rotating mirror. When the plane mirror is in the position m, the rays reflected by it to the lens seems to come on the point ‘o’. Then the image of S is at I such that PO = PQ=R where R is the radius of curvature of concave mirror.
When the plane mirror is rotating at niform speed is at position of m1 the rays reflected by it to the lens seems to come from O1. If the mirror is rotated by Q the reflected light is rotated by 2Q. from fig,
The time taken by light to travel from Q to P and back to Q is
SEE MICHELSON METHOD FROM HERE
- Why Does A Spinning Ball Follows A Curve Path During Flight ?
Most of the time you must have noticed this while watching a football match. But why does this happen ? Bernoulli’s principle :- ”For an inviscid(non viscous) flow of a non-conducting fluid, an increase in the speed of the fluid occurs simultaneously...
- Physics Engineering Syllabus By Ioe
Physics Syllabus For Engineering Entrance Examination In Nepal Given by Institute Of Engineering IOE :Unit I. Mechanics:DimensionsEquations of motion, Motion of a projectile. Laws of motion.Addition and subtraction of vectors. Relative velocity. Equilibrium...
- Millikan's Oil Drop Experiment
The oil drop experiment was an experiment performed by Robert A. Millikan and Harvey Fletcher in 1909 to measure the elementary electric charge (the charge of the electron).The experiment entailed...
- Entrance Exam Questions Of Class 11 (physics )
Question Option1 Option2 Option3 Option4 Answer Total internal reflection can occur when lights passes from: a denser to rarer medium a rarer to denser medium one medium to another of equal refractive index medium to another of equal absorption...
- Hseb Possible Physics Questions Of Class 11
PHYSICS | QUESTION MODEL HSEB QUESTION MODEL OF PHYSICS WITH POSSIBLE QUESTIONS CLASS : 11 For : 2070 HSEB Model Question Time : 3 hrsFull Marks : 75Pass marks : 27 Group ‘A’Q.1. Answer in brief, any SIX questions. [2 X 6 = 12] ...