Refraction of lights differs from reflection in that, in refraction i. at least two media are involved ii. there is a change in the direction of the ray iii. the speed of the ray changes. Which of the statements above is/are correct?
i only
i ad ii only
ii and iii only
i and iii only
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Wrong! The answer is D. Refraction occurs as a result of the bending of light rays when it travels from one media to another (i). This bending is as a result of the difference in speed of light in these two media (iii). Both reflection and refraction involves change in the direction of light rays; this doesn't differentiate them
Greetings, The Myschool Team.
The correct answer is D(I and III only) and not C(ii and iii only).
I is a difference as in reflection, only one media is involved while in refraction, two media are involved.
II is a similarity and not a difference as the direction of the ray changes both in reflection and refraction.
III is a difference as the speed of the ray does not change in reflection, while it changes in refraction.
Thus, the correct answer is D(i and iii only) and not C (ii and iii only). Thank you.
