| Q.39 | Determine the correctness or otherwise of the following Assertion [a] and Reason [r] Assertion: Application of an optical brightening agent makes the white fabrics appear brighter. Reason: Optical brightening agents absorb energy in the visible region and radiate back in the UV region. |
| (A) | Both [a] and [r] are true and [r] is the correct reason for [a] |
| (B) | Both [a] and [r] are true and [r] is not the correct reason for [a] |
| (C) | Both [a] and [r] are false |
| (D) | [a] is true but [r] is false |
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