an electric field is used
a magnetic field is used
both electric and magnetic field are used
none of the above
To produce sound it is necessary that
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