The Compton effect demonstrates that:

In polymeric $(BeCl_2)_n$,there are

$A$ certain number of spherical drops of a liquid of radius $r$ coalesce to form a single drop of radius $R$ and volume $V$. If $T$ is the surface tension of the liquid,then:

$A$ certain prism is found to produce a minimum deviation of $38^{\circ}$. It produces a deviation of $44^{\circ}$ when the angle of incidence is either $42^{\circ}$ or $62^{\circ}$. What is the angle of incidence when it is undergoing minimum deviation? (in degrees)

Cataract and skin cancer are caused by

Name the blood cells,whose reduction in number can cause clotting disorder,leading to excessive loss of blood from the body.