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76. In Celsius scale, the temperature “Absolute zero” is equivalent to
(A) –273 °C
(B) 0 °C
(C) 100 °C
(D) 273 °C

77. The minimum speed required to leave the planet Earth (Escape Velocity) is _____ kilometre per hour.
(A) 20,000
(B) 30,000
(C) 40,000
(D) 50,000

78. Which metal is is vital and widely used in electricity industry?
(A) Iron
(B) Copper
(C) Graphite
(D) Lead

ANSWER: PHYSICS MCQ
76. (A) –273 °C
77. (C) 40,000
78. (B) Copper