What the first law of reflection of Light states

The First Law of reflection States that the angle made by the incident light ray with the normal to the surface at the point of incidence is equal to angle made by the reflected light ray with the normal.

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

i'm on my way to history not a mistory.