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Light – Reflection and Refraction — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceLight – Reflection and Refraction1 Mark
MCQ
For two statements are given $-$ one labelled Assertion $(A)$ and the other labelled Reason $(R)$. Select the correct answer to these questions from the codes $\ce{(a), (b), (c)}$ and $(d)$ as given below :
Assertion : ln diffused reflection, a parallel beam of incident light is reflected in different direction.
Reason : The diffused reflection of light is due to the failure of the laws of reflection.
  • A
    Both $A$ and $R$ are true and $R$ is correct explanation of the assertion.
  • B
    Both $A$ and $R$ are true but $R$ is not the correct explanation of the assertion.
  • ✓
    $A$ is true but $R$ is false.
  • D
    $A$ is false but $R$ is true.
✓

Answer

Correct option: C.
$A$ is true but $R$ is false.
Diffuse reflection is caused by the roughness $($or irregularities$)$ in the reflecting surface of an object. The laws of reflection are valid at each point even on the rough surface of an object.

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