solid angle

Crystalline Solids - Crystalline substances have a definite rigid shape. The shape and size of crystals (even of the same materials) differs depending upon the conditions under which they are grown. Crystals of a given substance are bound by plane surfaces called faces. The angle..

Crystalline substances have a definite rigid shape. The shape and size of crystals (even of the same materials) differs depending upon the conditions under which they are grown. Crystals of a given substance are bound by plane surfaces called faces. The angle between any two faces i..

Consider a solid cylinder of mass M and radius R, rolling down a plane inclined at an angle with the horizontal. Let us assume that the cylinder rolls without slipping. The condition for rolling without slipping is that at each instant, the point of contact P (rather, the lin..

Angle of Contact and Shape of Meniscus..

depends on the nature of the liquid and solid in contact depends on the medium that exists above the free surface of liquid is independent of the inclination of solid to liquid surface. is fixed for a given pair of solid and liquid and surrounding medium..

The primary characteristic of laser radiation is that lasers have a higher brightness than any oilier light source. We define brightness as the power emitted per unit area per unit solid angle..

When sound is incident on a solid or a liquid surfaceit bounces off the surface like light rays. Sound waves also obey the laws of reflection and refraction. For sound waves to reflect, we need extended surface or obstacle of large size. For example, the rolling of thunder is due to succe..

Crystals are solid particles bounded by plane surfaces, which make definite angles with each other. This gives a definite geometrical shape to the crystal. These shapes are different for different crystals (Fig.6.13). Crystals of the same substance are identical only under iden..