Please answer fully!

1. Name two important differences between light waves and sound waves.

2. What is the equation that represents the law of reflection?

1.

a. Light waves are electromagnetic while sound waves are mechanical.

b. Light waves don't need a medium to travel, but sound waves have to travel with a medium.

c. Sound waves are  longitudinal while light waves are transverse. (extra answer)

2. The Law of Reflection formula is: θi = θr

θi is the angle of incidence

θr is the angle of reflection

Hope that works for you!

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.

answer: the correct answer for the fill in the blank is rods.

rods are the specialized photoreceptor cells that are present in the retina of human eye. they are responsible for vision in the night time ( also called scotopic vision). they have very low visual acuity and color distinguishing ability.

as they are responsible for vision in night time, therefore they are found predominantly in the nocturnal animals.