The reflecting surfaces of two mirrors form a vertex with an angle of 130 ∘. part a if a ray of light strikes mirror 1 with an angle of incidence of 48 ∘, find the angle of reflection of the ray when it leaves mirror 2.

Explain the difference between each pair of concepts. a. frequency and relative frequency b. percentage and relative frequency a. select the correct choice below. a. frequency is the total number of observations in a data set. relative frequency is the number of times a particular distinct value occurs. b. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of a value to the total number of observations. c. frequency is the total number of observations in a data set. relative frequency is the ratio of the number of times a particular distinct value occurs to the frequency. d. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of two different values.

The law of reflection states that the angle of reflection is equal to the angle of

The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.