extende source is required to get nearly parallel rays of light
to observe a clear difference between dark and light fringes
if we use glass plate then ring's will be clear
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
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
The rings may formd but the lack of intensity of light,the dark and light rings are not vissiable very well..
if we use glass plate then ring's will be clear
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.
The ring stand holds an iron ring, or other support apparatus, depending on what the experiment calls for.
The phrase "ring a bell" originated from the idea that bells are used to alert or signal something, so when a memory or piece of information "rings a bell," it triggers a familiar or recognizable feeling in one's mind.
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