Read the following statements, and choose the right answer.

1, 3, and 4 are correct.

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1, 2, and 4 are correct

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1 and 4 are correct.

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Only 1 is correct

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Solution

The correct option is C 1 and 4 are correct.

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Similar questions

Q. From following statements choose the correct combination.
A. Grease is used to reduce friction in bicycle chain
B. Ball bearings are used to reduce friction in a fan
C. Oil can be used to increase friction in a car engine.
D. Talc can be used to reduce friction when an object is sliding on a surface.

Of the following statements choose the correct statement :
A) Grease is used to reduce friction in the bicycle chain.
B) Ball bearings are used to reduce friction in a fan.
C) Oil can be used to increase friction in a car engine.
D) Talc can be used to reduce friction in a carrom board.

In which of the following situations is the heat produced due to friction desirable?

Q. Which of the following statements are true?
A. Gravity attracts all objects towards the earth.
B. Magnetic force attracts all kinds of metals.
C. Friction always tries to prevent movement.
D. Lubricants are substances which increase friction.
E. Friction produces heat and causes wear and tear.
F. Friction can help in grinding substances.

(a) A, C, E, F are true.
(b) A, B, C, D are true.
(c) C, D, E, F are true.
(d) A, C, D, F are true.

Q. Lubricants are used to increase friction in door hinges.

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