All electrons ejected from a surface by incident light of wavelength 200nm can be stopped before traveling 1m in the direction of a uniform electric field of 4NC^−1. The work function of the surface is How many photons are emitted per second by a 5 m W laser source operating at 632.8 nm? June 4, 2021 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 28 - Dual Nature of Radiation and Matter , Facebook Messenger WhatsApp Share this:TwitterFacebook Related A container of width 2a is filled with a liquid. A thin wire of mass per unit length \lambda is gently placed over the liquid surface in the middle of the surface as shown in the figure. As a result, the liquid surface is depressed by a distance y (\ \textless \ \ \textless \ a). Determine the surface tension of the liquid.Consider a ray of light incident from air onto a slab of glass (refractive index n) of width d, at an angle θ . The phase difference between the ray reflected by the top surface of the glass and the bottom surface isIn a double slit experiment the angular width of a fringe is found to be 0.2^∘ on a screen placed I m away. The wavelength of light used in 600 nm. What will be the angular width of the fringe if the entire experimental apparatus is immersed in water ? Take refractive index of water to be 4/3.
