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(A) Ratio of the relative strength of gravitational to weak force is nearly 10-3
(B) Ratio of the relative strength of gravitational to weak force is less than 10-3
(C) Ratio of the relative strength of strong nuclear to electromagnetic force is nearly 102
(D) Ratio of the relative strength of strong nuclear to electromagnetic force is nearly 10-2.

Which of the following is true?

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Important Questions on Physical World and Measurement

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Which of the following forces have highest range?
(a) Gravitational force
(b) Weak Nuclear force
(c) Electromagnetic force
(d) Strong Nuclear force
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Which of the following is a possible final step in applying the scientific method?
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Match the physical quantities with their correct SI units.

  List-I   List-II
(A) Planck's constant (I) kg m s-2
(B) Torque (II) kg-1 m3
(C) Weight (III) m2 kg s-1
(D) Specific volume (IV) kg m2 s-2

The correct match is

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If momentum P, area A and time T are taken to be the fundamental quantities then the dimensional formula for power is:
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Which of the following equation is dimensionally inconsistent? Here, l=l0=L, and m=m0=M

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The length and diameter of a cylinder are measured to be 10.1031 cm and 2.0935 cm respectively. The volume of the cylinder to an appropriate significant figures is
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The displacement of an oscillating particle is y=E sin Fx+Gt+H. The dimension of quantity X=EFGH in terms of mass M, length L and time T is