Physics-Physical Quantities
NEET Physics Physical Quantities MCQ Question
Type: MCQ-diagram based-Medium-Class 11
Consider a formula for a pendulum's period represented as T = k * (l/g)^(1/2). If a diagram shows a pendulum with a length l and gravitational acceleration g, which of the following statements is true about the constant k?
A
The constant k cannot be determined using dimensional analysis.
B
The constant k is dimensionless and can be found using the method of dimensions.
C
The value of k affects the dimensions of the formula.
D
K must be measured in units of time.
Correct Answer
Option A
Detailed Explanation
Dimensional analysis cannot be used to find dimensionless constants like k, as it only checks dimensional consistency.
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