An extended source is used in Newton's ring experiment to ensure uniform illumination across the entire surface of the plano-convex lens. This uniform illumination helps in producing a clear and distinct pattern of interference fringes, making it easier to measure the diameter of the rings accurately. Additionally, using an extended source reduces the effects of coherence length and ensures a consistent interference pattern, improving the reliability and precision of the experimental results.
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
An extended source is used in the Newton's ring experiment to ensure that the light incident on the glass plate is coherent and uniform. This helps to produce clear and sharp interference fringes, which are essential for accurate measurements of the radius of curvature of the lens and the wavelength of light.
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.
dont know plz you tell me the answer in detail
The Spoony Experiment - 2008 The Ring Terror's Realm Part 1 5-11 was released on: USA: 1 November 2012
The Spoony Experiment - 2008 The Ring Terror's Realm Part 2 5-12 was released on: USA: 5 November 2012
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
The ring finger has the least independent movement compared to other fingers, which can make it harder to control individually. The muscles and tendons that control finger movement are connected, so when one finger is extended, the others may follow involuntarily. This can result in the ring finger standing up slightly when the adjacent fingers are extended.
In my openion bubbles in the soap film is the real examples of it
In Newton's ring experiment, a plano-convex lens with a large radius of curvature is used to ensure that the interference fringes produced between the lens and the flat glass plate can be easily observed and analyzed. The large radius of curvature helps in creating distinct and well-defined interference patterns, which are essential for accurate measurement and analysis of the rings.