Astationary particle of charge q = 2.4 × 10^-8 c is placed in a laser beam (an electromagnetic wave) whose intensity is 2.7 × 10^3 w/m^2. determine the maximum magnitude of the (a) electric and (b) magnetic forces exerted on the charge. if the charge is moving at a speed of 3.7 × 104 m/s perpendicular to the magnetic field of the electromagnetic wave, find the maximum magnitudes of the (c) electric and (d) magnetic forces exerted on the particle.

Explanation:

It is given that,

Charge,

Intensity of electromagnetic wave,

The intensity of electromagnetic wave is given by :

Where

E is the electric field

E = 1426.79 N/C

(a) Electric force,

F = 0.000034 N

or

(b) As the charge is stationary, v = 0

Magnetic force,

(c) If the charge is moving with speed of,

Electric force,

F = 0.000034 N

or

(d) Magnetic force,

Here,

Since,

Hence, this is the required solution.

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees. 

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards