Answer:
cm
Explanation:
= height of the object = 2 cm
= height of the image
= distance of the object from the mirror = 30 cm
= focal length of the mirror = 25 cm
= image distance
using the mirror equation
cm
using the equation
cm
It means that you have returned to the designated starting position.
<h2>Answer: The <u>height</u> of a sound wave determines its <u>loudness</u> </h2>
Sound waves are longitudinal mechanical waves, that is, they depend on a medium to propagate.
Among the characteristics of a sound wave, it is the amplitude, that is the degree of movement of the molecules of the medium in which the wave propagates.
Depending on how high this amplitude is, the sound will be louder.
