Light incident on a surface at an angle of 45° undergoes diffused reflection. at what angle will it reflect?

does it stay at angles less than 45°?

here are the options:

a. only at angles less than 45°
b. only at angles greater than 45°
c. only at 45°
d. at any angle between -90° and 90°
e. only at 0°

(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?