Tag: physics
Questions Related to physics
What is the circular enclosure that the magnetic compass is placed in ?
A device used by the sailors to find the direction in which their ship is moving is called .................
State whether true or false:
The presence of magnetic field at a point can be detected by
The magnetic compass is not useful for navigation near the magnetic poles, since
Two parallel conductors are separated by 5cm. They carry 6A and 2A in the same direction. Between them the location from first at which magnetic needle lies along $B _H$ is
A magnetic needle oscillates in a horizontal plane with a period $T$ at a place where the angle of dip is $60^0$. When the same needle is made to oscillate in a vertical plane coinciding with the magnetic meridian, its period will be
When a current of $1$ ampere is passed in a coil lying in the magnetic meridian then a magnetic needle at its centre gives some deflection. If the current in the coil is increased to $\sqrt8$ ampere then at what distance from the centre of the coil will the deflection of needle remains underchanged?
For a total internal reflection, which of the following is correct?
If the angle of incidence is $70^o$, then calculate the angle between the incidence ray and the reflected ray.