Physics-(general)
NEET Physics (general) Assertion Reason Question
Type: Assertion Reason-assertion-Hard-Class 11
Assertion (A): The unit of luminous intensity, candela, is defined based on the fixed numerical value of the luminous efficacy of monochromatic radiation. | Reason (R): The candela is expressed in terms of base units like kilogram, metre, and second.
A
Both A and R are true and R is the correct explanation of A.
B
Both A and R are true but R is not the correct explanation of A.
C
A is true but R is false.
D
A is false.
Correct Answer
Option A
Detailed Explanation
The NCERT context states that the candela is defined by taking the fixed numerical value of the luminous efficacy of monochromatic radiation, and it is expressed in terms of base SI units.
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