An α-particle has a charge of +2e and a mass of 6.64 10-27 kg. it is accelerated from rest through a potential difference that has a value of 1.24 106 v and then enters a uniform magnetic field whose magnitude is 2.50 t. the α-particle moves perpendicular to the magnetic field at all times.

Explanation:

It is given that,

Charge of alpha particle,

Mass of the alpha particle,

Potential difference,

Magnetic field, B = 2.5 T

The α-particle moves perpendicular to the magnetic field at all times. The initial speed of the alpha particle is 0 as it is at rest. Using the conservation of energy as :

is the speed of the  α–particle

So, the speed of alpha particle is . Hence, this is the required solution.

thermal energy is the answer

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.