Which of the following does not increase regularly?

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Which of the following does not increase regularly?

Options

(a) mass number
(b) atomic number
(c) packing fraction
(d) binding energy

Correct Answer:

packing fraction

Explanation:

Mass number, atomic number and binding energy increases regularly whereas packing fraction does not increase regularly. Packing fraction (f) is the difference between the exact nuclear mass M of a nucleus and its mass number A, divided by the mass number and it is given by f = (M – A) / A The curve of f × 10⁴ against A shows a minimum at about A = 50, the packing fraction is negative for mass numbers between 16 and 180 and packing fraction is positive for mass number 16 > A > 180

Related Questions:

1. The nuclear radius of a certain nucleus is 7.2 fm and it has a charge of 1.28×10⁻¹⁷ C.
2. A piece of marble is projected from the earth’s surface with velocity of 50 m/s
3. The threshold wavelength for photoelectric emission from a material is 4800 Å.
4. A n-p-n transistor is connected in common emitter configuration in a given amplifier.
5. The most important characteristic of electron in the production of X-rays is

Topics: Atoms and Nuclei (136)
Subject: Physics (2479)

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