Laws of reflection state that: MCQ with Answer and Explanation

Laws of reflection state that:

A. Incident ray, reflected ray, and normal lie in same plane

B. Both (a) and (b)

C. Light bends towards normal

D. Angle of incidence equals angle of reflection

Answer: Option B

Solution (By JKExamLibrary)

Laws of reflection: (1) Angle of incidence (i) equals angle of reflection (r); (2) Incident ray, reflected ray, and normal at point of incidence all lie in the same plane. Option D describes refraction, not reflection. These laws hold for all reflecting surfaces (plane, curved). Memory tip: 'i = r and coplanar rays'. This definition-based question tests precise recall of fundamental optics laws, frequently examined in competitive exams. Always distinguish reflection laws (i=r) from refraction laws (Snell's law: n₁sin i = n₂sin r).

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An object weights 10 N in air, 8 N in water. The buoyant force is

A. 2 N

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C. 18 N

D. 8 N

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Correct Answer: Option A

Explanation:
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Question #2 Report Error

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Explanation:
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