The dimensions of surface tension are the same as that of: MCQ with Answer and Explanation

The dimensions of surface tension are the same as that of:
A. Pressure
B. Spring constant
C. Viscosity
D. Force
Answer: Option B
Solution (By JKExamLibrary)
Surface tension is defined as Force per unit length (F/L). Dimensional formula: [MLT⁻²] / [L] = [MT⁻²]. A spring constant (k) is defined by Hooke's Law as Force per unit extension (F/x), which also has dimensions [MLT⁻²] / [L] = [MT⁻²]. Thus, both share the same dimensional formula.

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The phenomenon of splitting of white light into its constituent colours is called
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Correct Answer: Option A


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A voltmeter is always connected in
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Correct Answer: Option A


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The escape velocity of a body from Earth is v_e. If Earth's radius shrinks to 1/4th keeping mass constant, escape velocity becomes
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Correct Answer: Option D


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