<span>The line that is drawn perpendicular to the point at which a wave intersects a boundary is know as the Normal .
When the normal is drawn, the incident ray makes an angle with it known as the angle of incidence and the reflected ray makes an angle with it known as the angle of incidence. These angles are always equal.
The refracted ray makes an angle with the normal known as angle of refraction. The sin of angle of incidence to the sin of angle of refraction is called the refractive index( </span>μ= <span>sin i / sin r) .
hope all of it helps you!</span>
The answer is A because the paper does not change its chemical properties only changes the way it looks.
Explanation:
The acceleration of the scooter is 2.5 m/s
It's a quantitative observation because it includes numerical data.
Idk what is growing but if it’s a free than c
