A man pulls a crate of mass 25 kg across the leveled ground with a horizontal force of 60 N. A constant force of friction of 20 N acts on the sledge. What is the acceleration of the sledge...? Mcqs

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A man pulls a crate of mass 25 kg across the leveled ground with a horizontal force of 60 N. A constant force of friction of 20 N acts on the sledge. What is the acceleration of the sledge...?

(A) 0.63 ms^-2
(B) 1.6 ms^-2

(C) 2.4 ms^-2
(D) 3.2 ms^-2

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Terrestrial planets in solar system are made of____________...?

(A) Metal
(B) Rock

(C) Both A and B
(D) None of the above

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The planets visible to us without using a telescope are __________...?

(A) 3
(B) 4

(C) 5
(D) 6

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When two surfaces move or slide over each other, they experience:...?

(A) Gravitational force
(B) Centripetal force

(C) Electrostatic force
(D) Frictional force

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Bronze medal is made up of metals ...?

(A) copper,nickel
(B) copper, tin

(C) copper, silver
(D) copper, zinc

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Those physical quantities, which depend on two or more fundamental quantities or power of the fundamental quantity, are called ____...?

(A) Fundamental Quantities
(B) Physical Constants

(C) Dimensionless Quantities
(D) Derived Quantities

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Loss of electron and proton is called...?

(A) Oxidation reaction
(B) Reduction reaction

(C) Redox reaction
(D) All of these

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The lowest temperature in laboratory thermometer is...?

(A) 10°C
(B) 0°C

(C) 100°C
(D) -10°C

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The Summer solstice in the Northern Hemisphere happens on: __________...?

(A) 21 July
(B) 22 December

(C) 22 March
(D) 21 June

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Value of 1 Farady is equal to ______...?

(A) 9.65 C
(B) 9650 C

(C) 96500 C
(D) 965 C

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