Question

(A) DEFINE THE FOLLOWING:
ii) reflection iii) acids​

Answer 1

Answer:

Reflected ray: The ray that bounces back from the reflecting surface, after reflection from it is called reflected ray.

Answer 2

$\huge\bold\red{Reflection}$

Reflection is the change in direction of a wave at a boundary between two different media, so that the wave moves back into the medium it came from. The most common examples include the reflection of light, sound and water waves.

$\huge\bold\red{Acids}$

An acid is any hydrogen-containing substance that is capable of donating a proton (hydrogen ion) to another substance. A base is a molecule or ion able to accept a hydrogen ion from an acid. Acidic substances are usually identified by their sour taste.