Units & Dimensions – 2 – 5

71. The dimensional formula of plank’s constant is ……………

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

ANSWER

EXPLANATION

72. Dimensional formula of latent heat is ……………

(a) M 02–2
(b)2 L 0–2
(c) M 1 L 2–1
(d)2 L 2–1

ANSWER

EXPLANATION

73. Which physical quantity is represented by M 1 L T –3 A –2 ?

(a) Resistivity
(b) Resistance
(c) conductance
(d) conductivity

ANSWER

EXPLANATION

74. Which physical quantity is represented by M –1 L –3 T 3 A 2  ?

(a) Resistivity
(b) Resistance
(c) conductance
(d) conductivity

ANSWER

EXPLANATION

75. Which physical quantity is represented by M 1 L T –3 A –1 ?

(a) Stress
(b) Resistance
(c) Electric Field
(d) potential Difference

ANSWER

EXPLANATION

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