A glacier is a large piece of _______ .
Siachen glacier is a _______ type of glacier.
A small piece of cesium metal (ϕ=1.9eV) is kept at a distance of 20 cm from a large metal plate having a charge density of 1.0 ×10−2Cm−2 on the surface facing the cesium piece. A monochromatic light of wavelength 400 nm is incident on the cesium piece. Find the minimum and the maximum kinetic energy of the photo electrons reaching the large metal plate. Neglect any change in electric field due to the small piece of cesium present.
In a compound microscope magnification will be large, if the focal length of the eye piece is