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Units and Dimensions – 2 – 6

76. Which of the following has the dimensions of pressure ?

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

ANSWER

EXPLANATION

77. What is the dimensional formula of gravitational constant ?

(a) M L 2–2
(b) M L –1–1
(c)–1 L 3–2
(d) None of these

ANSWER

EXPLANATION

78. The dimensional formula for Young’s modulus is :

(a) M L –1–2
(b)0 L T –2
(c) M L T –2
(d) M L 2–2

ANSWER

EXPLANATION

79. Dimensions of surface tension are :

(a) M 2 L 2–2
(b)2 L T –2
(c) M T –2
(d) M L T –2

ANSWER

EXPLANATION

80. Dimensions of torque are :

(a) M 2 L 22
(b)0 L 2–2
(c)0 L 0–1
(d)0 L 2–1

ANSWER

EXPLANATION

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