Question

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : Visual efficiency can be increased by using matte finish on surfaces in a workplace
Reason (R) : Matte finish reduces flicker
In light of the above statements, choose the most appropriate answer from the options given below.

• A. Both (A) and (R) are correct and (R) is the correct explanation of (A).
• B. Both (A) and (R) are correct but (R) is NOT the correct explanation of (A).
• C. (A) is correct but (R) is not correct.
• D. (A) is not correct but (R) is correct.

Hint:

Remember that surface textures (matte vs. glossy) only affect light reflection and glare. They cannot affect flicker, which is a property of the light source itself.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Workplace lighting design must manage glare and light stability to prevent visual fatigue and support productivity.

Step 2: Detailed Explanation:
Let us analyze both statements:

• Assertion (A): Visual efficiency can be increased by using matte finish on surfaces in a workplace: This is correct. Matte finishes diffuse incident light rather than reflecting it directly (which glossy surfaces do). This reduces specular glare, helping to prevent eye strain and improve visual comfort and work efficiency.

• Reason (R): Matte finish reduces flicker: This is incorrect. Light flicker is a rapid fluctuation in light intensity caused by the light source or its electrical ballast. The surface finish (matte or glossy) has no effect on light bulb flicker.
Since Assertion (A) is correct but Reason (R) is incorrect, the correct option is (C).

Step 3: Final Answer
The correct choice is: (A) is correct but (R) is not correct.