If the arms of an angle on the paper are increased, the angle increases.

If the arms of an angle on the paper are decreased the angle decreases.

When the temperature increased the angle of contact of a liquid

If the refracting angle of a Fresnel Biprism is increased, then

The critical angle increases with

If the arms of one angle are respectively parallel to the arms of another angle, show that the two angles are either equal or supplementary.

A ray of light strikes an air-glass interface at an angle of incidence (i=60^@) and gets refracted at an angle of refraction r. On increasing the angle of incidence (i gt 60^@) , the angle of refraction r

Tangent of an angle increases four xx as the angle itself.At what rate the sine of the angle increases w.r.t.the angle?

Prove that if the two arms of an angle are perpendicular to the two arms of another angle,then the angles are either equal or supplementary.