What does the law of reflection mean?

La ley de reflexión establece que el ángulo que forma el rayo incidente con la normal, es igual al ángulo que se forma entre el rayo reflejado y la normal

The law of reflection states that the incident ray, the reflected ray, and the normal to the surface of the mirror all lie in the same plane. Furthermore, the angle of reflection is equal to the angle of incidence.

Explanation:

The three laws of reflection are :

1. The angle between the incident ray and the normal is equal to the angle between the reflected ray and the normal

2. The incident ray, the normal and the reflected ray are all in the same plane

3. Incident ray and refracted ray are on different sides of the normal

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.

490 n

f=125n a=2.5m/s2