Rutherford’s α-scattering experiment concludes that
Options
(a) there is a heavy mass at centre (b) electrons are revolving around the nucleus (c) both (a) and (b) (d) None of these
Correct Answer:
there […]
Mass defect is known as
Options
(a) ionisation energy (b) binding energy (c) packing fraction (d) activity
Correct Answer:
binding energy
Explanation:
No explanation available. Be the first to write the explanation for […]
In the Bohr’s model of hydrogen atom, the ratio of the kinetic energy to the total energy of the electron in nth quantum state is
Options
(a) (-1) (b) (+1) (c) (-2) (d) (+2)
Bohr’s postulates quantizes
Options
(a) atomic mass (b) charge (c) angular momentum (d) energy
Correct Answer:
angular momentum
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
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 […]
The volume of a nucleus is directly proportional to
Options
(a) A (b) A³ (c) √A (d) A¹/₃
Correct Answer:
A
Explanation:
Radius of nucleus R = R₀ A¹/³ where R₀ = 1.2 × […]
In Raman effect, Stoke’s lines are spectral lines having
Options
(a) frequency greater than that of the original line (b) wavelength equal to that of the original line (c) wavelength less than that […]
If the binding energy of the nucleon in ₃⁷Li and ₂⁴He nuclei are 5.60 MeV and 7.06 MeV respectively, then in the reaction: p+₃⁷Li→2 ₂⁴He, energy of proton must be
Options
(a) 39.2 […]
When ₃Li⁷ nuclei are bombarded by protons, and the resultant nuclei are ₄Be⁸, the emitted particles will be
Options
(a) neutrons (b) alpha particles (c) beta particles (d) gamma photons
Correct Answer:
gamma photons
The radius of germanium nuclide is measured to be twice the radius of ₄⁹Be. The number of nucleons in Ge are
Options
(a) 72 (b) 73 (c) 74 (d) 75
Correct Answer:
72
Explanation: […]
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