Single correct option
Consider the following statements:
1. Total internal reflection can occur when light travels from water into air.
2. The critical angle depends on the pair of media involved.
Which of the statements given above is/are correct?
1. Total internal reflection can occur when light travels from water into air.
2. The critical angle depends on the pair of media involved.
Which of the statements given above is/are correct?
- A. 1 only
- B. 2 only
- C. Both 1 and 2
- D. Neither 1 nor 2
Show answer and solution
Answer: (C) Both 1 and 2
Total internal reflection needs light to pass from a denser to a rarer medium at an angle above the critical angle, so water to air qualifies and statement 1 is correct. The critical angle is given by sin C = n2/n1, so it depends on both media; statement 2 is also correct.
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