He inner surface of a cone coated by a reflecting layer forms a conical mirror. a thin incandescent filament is stretched in the cone along its axis aphe minimum angle o of the cone for which the rays emitted by the filament will be reflected from the conical surface not more than once is greater than or equal to 120°. b) ifangle ofcone is less than 120° the rays from the filament will be reflected from the conical surface not more than once c) forany angle of cone multiple reflections of the rays from filament occurs d) lf angle ofcone is less than 120° the rays from the filament will be reflected from the conical surface more than once

what is the question?

you have to draw the persons position over there

answer: option c.

explanation:

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.