The false statement is
Every SHM is periodic in nature
Every periodic motion is SHM
In every SHM, total energy is proportional to the square of amplitude
In SHM, acceleration of oscillating body is proportional to the displacement from the equilibrium position
A particle of unit mass and specific charge s is thrown from the wall perpendicularly to a wall at a distance d from the wall with speed 'v'. The minimum magnetic field produced so that the particle does not touch the wall, is:
An electron beam is accelerated through a potential difference of V volt. The minimum wavelength of X-rays produced is :
Light waves of wavelength is incident on a metal of work function . Maximum velocity of the electron is :
A charged particle is moving in a uniform magnetic field in a circular path of radius R. When energy of the particle is doubled, then the new radius will be:
R
R
R/
2R
A capacitor of capacity C is charged by connecting it with R according to the figure. Energy supplied by the battery in this process is :
more than
2CV2
less than
Two bulbs A and B are connected in parallel. Bulb A will glow more than bulb B. If their resistances are RA and RB respectively. Then :
RA RB
RA RB
RA RB
none of these
Magnetic and electric field are acting on a proton moving with velocity . Proton will be undeflected if
E is parallel to v, but perpendicular to B
E and B both are parallel to v
E and B are perpendicular to each other
E, B and v are perpendicular to one another and v=
The unit of permittivity () of space is
newton-metre2 / coulomb2
coulomb / newton-metre
coulomb / newton-metre2
coulomb2 / newton-metre2
D.
coulomb2 / newton-metre2
From the relation
F =
or =
Unit of =
= coulomb2 / newton metre2