So if you want Newton's rings to form all you have to do is make sure monochromatic light incidents on glass placed at a 45 degree angle and from there it should go to the plano-convex lens. What happens here is that the ray undergoes division of amplitude. So now two coherent rays emerge out of the plano convex lens. Since these two are coherent rays they interfere each other and form constructive and destructive interference. All the loci comes together and form bright and dark rings
They are used to indicate the agreement between the contours of 2 surfaces. One master surface is generated in a transparent material.
When placed against the replica, surface deviations in distance between the 2 surfaces of 1/4th wavelength of the light used to illuminate the specimen will alternate between light and dark rings.
The experiment has two rods on one is a ball and the other a ring. To start with the ball fits through the ring. Then the ball is heated and it no longer fits the is because the particles have been given more energy by the heat and move around more.
SOURCESOF ERRORandPRECAUTION:
(1) Glass plates and lens should be cleaned thoroughly.
(2) The plano‐convex lens should be of large radius of curvature.
(3) The sources of light used should be an extended one.
(4) The range of the microscope should be properly adjusted before measuring the diameters.
(5) Crosswire should be focused on a dark ring tangentially.
(6) The centre of the ring system should be a dark spot.
(7) The microscope is always moved in the same direction to avoid back lash error.
(8) Radius of curvature should be measured accurately.
rings are formed due to the interference between the light waves reflected from the top and bottom surfaces of the air film formed between the lens and glass sheet
Newton's Ring experiment is a phenomenon in which the reflection of light between two surfaces is used to create an interference pattern. It is named after the Scientist, Sir Isaac newton.
Newton' s ring experiment demonstrates interference with a circular object. A central dark fringe can be located between the glass plate and a lens.
if we use glass plate then ring's will be clear
extende source is required to get nearly parallel rays of light
Radius of rings is directly proportional to the square root of the radius of curvature. Thin lens would have larger radius of curvature and hence the option
when dust particles come in contect of plano convex lence.
newtons ring is formed due to the consequtive circle of different radius of bright and dark in which the centre is dark
if we use glass plate then ring's will be clear
extende source is required to get nearly parallel rays of light
The ring stand holds an iron ring, or other support apparatus, depending on what the experiment calls for.
dont know plz you tell me the answer in detail
The Spoony Experiment - 2008 The Ring Terror's Realm Part 2 5-12 was released on: USA: 5 November 2012
The Spoony Experiment - 2008 The Ring Terror's Realm Part 1 5-11 was released on: USA: 1 November 2012
they are formed at the point of contact of lens and glass plate
Radius of rings is directly proportional to the square root of the radius of curvature. Thin lens would have larger radius of curvature and hence the option
In my openion bubbles in the soap film is the real examples of it
In air wedge there is uniform separation between the two slabes but in Newtons ring the thickness is varying
The centre spot will be dark even when we use white source. As the radius of the ring is directly proportional to the square root of the wavelength, the violet being the shortest wavelength will come first and red will be the last as its wavelength is the longest in the visible region. Any how we cannot get sharp coloured rings around the black spot. Instead overlapping occurs and just multicoloured rings can be seen.
Molecules in solid matter/material move through heat.Example:Through an experiment you ca determine how molecules of solid material move.Use the science tools: alcohol lamp, ball, and ring.(note: the ring should fit on the ring not too tight nor too loose)Insert the ball on the ring. Does it fit?Now heat the ball for about 1-2 minutes.Insert again the ball on the ring. What do you observe?Try this experiment and see how heat can move the molecules of solid.