The vibrations of source are not necessary
The source should execute transverse vibrations
The source should execute longitudinal vibrations
The source may execute any type of vibrations
Total internal reflection can not take place when light goes from :
Total internal reflection can take place when light travels from
Transformer is based upon the principle of
Transformers are used in
Transverse waves can propagate
Treads on the shoe soles are made to increase
Tube light is filled with
Tungsten is used for the manufacture of the filament of an electric bulb, as
Tungsten is used for the manufacture of the filament of an electric bulb, because
Two bulbs of 100W and 60W are operating on 220 V line. The ratio of their resistance is