List of top Physics Questions asked in BITSAT

A disc is placed on a surface of pond which has refractive index 5/3. A source of light is placed 4 m below the surface of liquid. The minimum radius of disc needed so that light is not coming out is

To increase the range of a voltmeter

A glass prism of refractive index 1.5 is immersed in water (refractive index 4/3). A light beam incident normally on the face AB is totally reflected to reach the face BC if

A magnet of magnetic moment $20\, CGS$ units is freely suspended in a uniform magnetic field of intensity $0.3\, CGS$ units. The amount of work done in deflecting it by an angle of $30^\circ$ in $CGS$ units is