For incidence to be normal, the angle must ________.

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $9.99Unlock all

Prepare for the Davies Publishing SPI Test with our study materials featuring flashcards and multiple-choice questions. Each question includes hints and explanations to enhance your learning process. Ace your exam with confidence!

Multiple Choice

For incidence to be normal, the angle must ________.

Explanation:
Normal incidence means the incoming ray is perpendicular to the surface. When you measure the angle with respect to the surface, a line that is perpendicular forms a 90-degree angle with the plane. So to be normal, the angle must be exactly 90 degrees. An angle smaller than 90 would be oblique incidence, and angles greater than 90 aren’t used for describing the line–plane angle in this context.

Normal incidence means the incoming ray is perpendicular to the surface. When you measure the angle with respect to the surface, a line that is perpendicular forms a 90-degree angle with the plane. So to be normal, the angle must be exactly 90 degrees. An angle smaller than 90 would be oblique incidence, and angles greater than 90 aren’t used for describing the line–plane angle in this context.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy