Consider the following statements regarding light:

Science & Technology ·Previously asked in JKPSC Combined Competitive Examination (JKCCE) 2025

View the full solved paper: GS Paper I (Set B)

Question

Consider the following statements regarding light:

I. Reflection and refraction are optical phenomena.

II. Both reflection and refraction involve a change in the speed of light.

III. Refraction bends the path of light.

Which of the above statement(s) is/are correct?

  1. A. Only I and II are correct
  2. B. Only II and III are correct
  3. C. Only I and III are correct (Correct answer)
  4. D. I, II and III are correct

Correct Answer

Option C — Only I and III are correct

Detailed Solution & Explanation

The correct answer is Only I and III are correct.

Key Points

  • Statement I: Reflection and refraction are optical phenomena ✓.
  • Statement II: Reflection does NOT involve a change in the speed of light — only refraction changes the speed of light as it passes from one medium to another.
  • So Statement II is incorrect ✗.
  • Statement III: Refraction bends (changes the direction of) light ✓.
  • Only I and III are correct.