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JAMB Physics 2011 Objective — Question 12

Question 12 of 49 from the Joint Admissions and Matriculation Board (JAMB) Physics 2011 Objective paper, with the correct answer and a full explanation.

Which of the following could effectively be used to reduce friction?

A. A. Water
B. B. Petrol
C. C. Kerosene
D. D. GreaseCorrect

Explanation

Grease is a good lubricant and can be used to reduce friction.

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