to verify the laws of reflection of light by using a plane mirrormsci world ticker

A strip of plane mirror is se~ up vertically, with its silvered surface on a line M M’ drawn on a sheet of white paper on a drawing-board (Fig, 21.9).A pin 0, to serve as an object, is stuck into the paper about 7 or 8 em from MM’.

For accuracy, these sighting pins must be placed as far apart as the paper will allow. Experimental Verification of The Laws of Reflection - YouTube The law of reflection (in physics) states that when a light ray is incident on a plane surface, the incident ray, the reflected ray and the “normal” to the surface of the mirror all lie in the same plane.
The law of reflection states that when a ray of light reflects off a surface, the angle of incidence is equal to the angle of reflection. Characteristics of Images formed by Plane Mirror. Reflection involves a change in direction of the light ray.The angle of incidence is the angle between this normal line and the incident ray; the angle of reflection is the angle between this normal line and the reflected ray. In each case it is found that i = r, thus verifying the second law.This experiment can be performed on a flat drawing-board only if the mirror is set up at ri~ht angles to the board. Here they ought all to intersect at I. Start your 48-hour free trial and unlock all the summaries, Q&A, and analyses you need to get better grades now.First law :-  When a light ray strikes a plane mirror, the light ray reflects off the mirror.

To verify the laws of reflection of light. This website uses cookies to ensure you get the best experience. Images formed by a plane mirror are “Erect/Upright”. The law of reflection is illustrated in Figure 1, which also shows how the angles are measured relative to the perpendicular to the surface at the point where the light ray strikes.

The two sighting pins are next removed, and their positions marked by small pencil crosses and lettered PI and P2• The same procedure is carried out with the eye in several other positions, such as E2, at least two positions on either sick of the object o being taken. Not is joined, cutting MM’ at, Q, it is found that IQ = OQ and 10 is perpendicular to MM’. With the eye in some convenient position EI> two pins PI and Pz are stuck into the paper so as to be in a straight line with the image I of the pin 0 … The lines OBI, OB2, etc., represent incident rays and BIP2, B2P4, etc., are the corresponding reflected rays. If a ray of light could be observed approaching and reflecting off of a flat mirror, then the behavior of the light as it reflects would follow a predictable law known as the law of reflection. It also states that the angle the incident ray makes with the normal is equal to the angle that the reflected ray makes with the normal. With the eye in some convenient position EI> two pins PI and Pz are stuck into the paper so as to be in a straight line with the image I of the pin 0 seen in the mirror. c. Images formed by a plane mirror are of “same shape and size” as that of an object. It state that:1. When this has been done the mirror is removed” tithe points P I and P 2′ etc., are then joined by pencil lines to cut MM’ at B I’ etc., add these lines are produced backwards behind the mirror.

The incident ray, the reflected ray and the normal to the surface of the mirror all lie in the same plane.2.

Normans BINI, B2N2 and so on are constructed and the angles of incidence and reflection for each pair of rays noted in a table. A strip of plane mirror is se~ up vertically, with its silvered surface on a line M M’ drawn on a sheet of white paper on a drawing-board (Fig, 21.9).A pin 0, to serve as an object, is stuck into the paper about 7 or 8 em from MM’. Solved Example for You. Q. The angles are measured relative to the perpendicular to the surface at the point where the ray strikes the surface.

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