| ⇦ | 
| ⇨ |
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:
Nuclear radii R = R₀(A)¹/³, where R₀ = 1.2 Fm
(or), R ∝ (A)¹/³
Rʙₑ / Rɢₑ = (9)¹/³ / (A)¹/³ (or), Rʙₑ / 2Rʙₑ = (9)¹/³ / (A)¹/³ (Given: Rɢₑ = 2Rʙₑ)
(A)¹/³ = 2 × (9)¹/³ ⇒ A = 2³ × 9 = 8 × 9 = 72
Related Questions: - A body of mass 4 kg is accelerated upon by a constant force travels
- Four identical cells of emf Ԑ and internal resistance r are to be connected in series.
- The binding energy per nucleon of ₃⁷Li and ₂⁴He nuclei are 5.60 MeV and 7.06MeV
- If seperation between screen and source is increased by 2%. What would be the effect
- An engine is moving towards a wall with a velocity 50 ms⁻¹ emits a note of 1.2 kHz.
Topics: Atoms and Nuclei
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A body of mass 4 kg is accelerated upon by a constant force travels
- Four identical cells of emf Ԑ and internal resistance r are to be connected in series.
- The binding energy per nucleon of ₃⁷Li and ₂⁴He nuclei are 5.60 MeV and 7.06MeV
- If seperation between screen and source is increased by 2%. What would be the effect
- An engine is moving towards a wall with a velocity 50 ms⁻¹ emits a note of 1.2 kHz.
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
Nuclear Radius, R=Ro(A)1/3, where Ro ~ 1.2fm (fermi unit=10-15)
Or R=(A)1/3.
RBe /RGe = (9)1/3/(A)1/3
RBe /2 RBe = (9)1/3/(A)1/3 …-(Given: RBe: RGe = 1:2)
Or (A)1/3 = 2*(9)1/3
Hence, A=23 * 9
=8*9
=72.
Hence, the number of nucleons is 72.