Question:
In a Newton's Ring experiment, the diameter of the 20th dark
Last updated: 7/31/2022
![In a Newton's Ring experiment, the diameter of the 20th dark](https://media.kunduz.com/media/sug-question/raw/57309111-1659264454.710833.jpeg?h=512)
In a Newton's Ring experiment, the diameter of the 20th dark ring was found to be 5.82 mm and that the 10th ring 3.36 mm . If the radius of the planoconvex lens is 1 m, calculate the wavelength of light used