Multiple choice

Consider the following statements:

  1. An air bubble in water behaves as a concave lens.
  2. The duration of day appears to be increased by 2 min. due to atmospheric refraction.

Which of the given statements is/are correct?

  1. Only (1)

  2. Only (2)

  3. Both (1) and (2)

  4. Neither (1) nor (2)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Statement (1) is correct. An air bubble in water behaves as a concave lens, which diverges the sun rays falling on it.  Statement (2) is incorrect. The duration of day appears to be increased by 4 min. due to atmospheric refraction. (2 min. in the morning and 2 min. in the evening)

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