Which of the following does not increase regularly?

⇦

⇨

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. In the reaction ₁²H+₁³H+₂⁴He+₀¹n, if the binding energies of ₁²H,₁³H and ₂⁴He
2. The maximum and minimum intensities of two sources is 4:1. The ratio of amplitude is
3. A magnetic force acting on a charged particle of charge -2µC in a magnetic field of 2T
4. The work function of a substance is 4.0 eV. The longest wavelength of light
5. Three objects coloured black, gray and white can withstand hostile conditions upto 2800⁰C.

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

---

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

---

Share this page with your friends