A light ray strikes a plane mirror at an angle of 30 degrees to the normal. What is the angle of reflection? (2023)
Practice Questions
1 question
Q1
A light ray strikes a plane mirror at an angle of 30 degrees to the normal. What is the angle of reflection? (2023)
30 degrees
60 degrees
90 degrees
45 degrees
According to the law of reflection, the angle of reflection is equal to the angle of incidence. Therefore, the angle of reflection is also 30 degrees.
Questions & Step-by-step Solutions
1 item
Q
Q: A light ray strikes a plane mirror at an angle of 30 degrees to the normal. What is the angle of reflection? (2023)
Solution: According to the law of reflection, the angle of reflection is equal to the angle of incidence. Therefore, the angle of reflection is also 30 degrees.
Steps: 4
Step 1: Identify the angle at which the light ray strikes the mirror. This is called the angle of incidence.
Step 2: In this case, the angle of incidence is given as 30 degrees.
Step 3: Recall the law of reflection, which states that the angle of reflection is equal to the angle of incidence.
Step 4: Since the angle of incidence is 30 degrees, the angle of reflection will also be 30 degrees.
