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NEET UG PHYSICS MCQ: UNITS & MEASUREMENTS
1
Medium
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Analyzing
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The equation of a wave is given by where is the angular velocity and υ is the linear velocity. The dimension of k is
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Correct option: B
T
Option B (T) is correct because the argument of the sine function must be dimensionless, and therefore k must have the same dimensions as x/v, which is time.
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Statement-I: Random errors can be positive or negative.
Statement-II: Cause of random errors are uncertain. An object is moving through the liquid. The viscous damping force acting on it is proportional to the velocity. Then dimension of constant of proportionality is The error due to parallax is a: 2.34 is obtained by rounding of the number The dimensional formula of self-inductance is The dimension of is that of
Statement-II: Cause of random errors are uncertain. An object is moving through the liquid. The viscous damping force acting on it is proportional to the velocity. Then dimension of constant of proportionality is The error due to parallax is a: 2.34 is obtained by rounding of the number The dimensional formula of self-inductance is The dimension of is that of