Multiple choice

When the field behind a screen with an opening is added to the field of a complementary screen, the sum is equal to the field when there is no screen. Which of the following explains the above statement?

  1. Babinet’s principle

  2. Field equivalence principle

  3. Hansen–Woodyard principle

  4. None of these

  5. -

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When the field behind a screen with an opening is added to the field of a complementary screen, the sum is equal to the field when there is no screen.