If energy (E), velocity (V) and time (T)

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Target Exam

CUET

Subject

Physics

Chapter

Units and Measurements

Question:

If energy (E), velocity (V) and time (T) are chosen as the fundamental quantities, the dimensional formula of surface tension will be :

Options:

[EV^-1T^-2]

[EV^-2T^-2]

[E^-2V^-1T^-3]

[EV^-2T^-1]

Correct Answer:

[EV^-2T^-2]

Explanation:

Let : S ∝ [E^aV^bT^c]

[M¹T^-2] = [ML²T^-2]^a[LT^-1]^b[T]^c

a = 1 ; b = - 2 ; c = - 2