Out of the following pairs, choose the pair in which the physical quantities do not have identical dimension?

A) Pressure and Young modules
B) Planck constant and Angular momentum
C) Impulse and moment of force
D) Force and rate of change of linear momentum

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Pick out the scalar quantity

A) force
B) pressure
C) velocity
D) acceleration

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Of the following properties of a wave, the one that is independent of the other is its

A) amplitude
B) velocity
C) wavelength
D) frequency

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Metals are good conductors of electricity because

A) they contain free electrons
B) the atoms are lightly packed
C) they have high melting point
D) All of the above

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Nuclear sizes are expressed in a unit named.

A) Fermi
B) angstrom
C) newton
D) tesla

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