NEET Physics Physical Quantities MCQ Question
Consider a diagram showing a pendulum in motion. The time period T of the pendulum is given by the formula T = 2π√(l/g). Which of the following statements about the constant 'k' in the formula is correct?
The constant 'k' can be derived using dimensional analysis.
The constant 'k' is dimensionless and cannot be derived using dimensional analysis.
The constant 'k' depends on the mass of the pendulum.
The constant 'k' changes with the length of the pendulum.
Correct Answer
Detailed Explanation
The NCERT context states that dimensionless constants like 'k' cannot be obtained by the method of dimensions, indicating it is dimensionless and not derivable by dimensional analysis.
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