Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Which of the following statements about units and measurement is correct?
A
The unit of force in SI is equivalent to kg m/s².
B
An angstrom is equal to 10⁻⁹ meters.
C
One mole of an ideal gas occupies 22.4 cm³ at STP.
D
The acceleration due to gravity is measured in kg m/s².
Correct Answer
Option A
Detailed Explanation
The unit of force, known as the Newton, is defined as kg·m/s², confirming option A is correct. Option B is incorrect as an angstrom equals 10⁻¹⁰ meters. Option C misstates the volume occupied by an ideal gas, which is 22.4 liters, not cm³. Option D incorrectly describes the unit for acceleration due to gravity, which is m/s², not kg m/s².
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