પ્રકાશનું કિરણ પ્રકાશીય પાતળા માધ્યમમાંથી પ્રકાશીય ઘટ્ટ માધ્યમમાં દાખલ થાય ત્યારે તેનો વેગ __________ માં ફેરફાર થવાથી ઘટે છે.

A તરંગલંબાઈ
B આવૃત્તિ
C કંપવિસ્તાર
D કળા

Verified Solution

Answer & Solution

Correct Answer

(A) તરંગલંબાઈ

Step-by-step Solution

Detailed explanation

A.કળા
\(\sin i_c=\frac{n_2}{n_1}\)
\(\therefore \sin i_c=\frac{1.5}{1.6}\)
\(\therefore \quad i_c=\sin ^{-1}\left(\frac{1.5}{1.6}\right)\)
\(\therefore \quad i_c=\sin ^{-1}\left(\frac{15}{16}\right)\)

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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