Physics-SI Units
NEET Physics SI Units MCQ Question
Type: MCQ-numerical-Easy-Class 11
In a hypothetical system of units where the unit of mass is 2 kg, the unit of length is 3 m, and the unit of time is 2 s, what is the magnitude of a calorie in terms of these new units?
A
0.233
B
75
C
2
D
0.525
Correct Answer
Option D
Detailed Explanation
Using the conversion 1 calorie = 4.2 J and the relation 1 J = 1 kg m^2 s^-2, the magnitude of a calorie in new units is calculated as 4.2 * (2)^-1 * (3)^-2 * (2)^2 = 0.525.
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