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Units & Dimensions – 2 – 3

61. Equation of physical quantity  v = at + bt 2.
Where,
v = velocity & t = time.
Write the dimensional formula of a in this equation :

(a) M 01–1
(b) M 1 L  –1
(c) M 01–2
(d) M 10

ANSWER

EXPLANATION

62. Dimensional formula for capacitance (C) :

(a) M –1 L –2 T 4 K 2
(b) M L –2 T 4 K 2
(c) M –1 L –2 T 3 K 1
(d)L 1 T –1 K –2

ANSWER

EXPLANATION

63. Dimensional formula for torque is :

(a) M 2 L 2–3
(b)2 L 1–2
(c) M 1 L 1–2
(d) M 1 L –2

ANSWER

EXPLANATION

64. Dimensions of impulse :

(a) M –1–11
(b) M 1 L –1
(c) M 111
(d) M 1 L –2

ANSWER

EXPLANATION

65. Write dimensional formula of coefficient of viscosity :

(a) M 12–1
(b) M –1 L 1
(c) M 1–1–1
(d) M 1 L -1

ANSWER

EXPLANATION

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