Mechanical Physics - Study Mode
[#181] Assertion (A) An iron ball floats on mercury but gets immersed in water. Reason (R) The specific gravity of iron is more than that of mercury.
Correct Answer
(C) A is true, but R is false
[#182] Writing an black board with a piece of chalk is possible by the property of
Correct Answer
(B) cohesive force
[#183] Hydraulic brakes used in automatic vehicles is direct virtual application of which law?
Correct Answer
(A) Pascal's Law
[#184] Spherical form of raindrop is due to
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(B) Surface tension
[#185] The pressure of air at a certain temperature is proportional to-
Correct Answer
(A) Density