PROVE THAT FOR PARALLEL LIGHT RAYS INCIDENT ON A FILM WITH THICKNESS t. AT AN ANGLE D: THE OPTICAL PATH DIFFERENCE (OPD) IS
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![PROVE THAT FOR PARALLEL LIGHT RAYS
INCIDENT ON A FILM WITH THICKNESS
t AT AN ANGLE Đ: THE OPTICAL PATH
DIFFERENCE (OPD) IS
OPD =
2
2 + √n² - sin ²0
t](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2a374032-eb6a-452e-b499-5bf877eae559%2Fff7f48e8-8f1b-4740-b693-594b9b26a774%2Fknxkc1o_processed.jpeg&w=3840&q=75)
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