| ⇦ | 
| ⇨ |
Order of e/m ratio of proton, α-particle and electron is
Options
(a) e>p>α
(b) p>α>e
(c) e>α>p
(d) None of these
Correct Answer:
e>p>α
Explanation:
For electron (e / mₑ) = 1.6 × 10⁻¹⁹ / 9 × 10⁻³¹ = 1.75 × 10¹¹ C kg⁻¹
For proton [e / m(p)] = 1.6 × 10⁻¹⁹ / 1.67 × 10⁻²⁷ = 9.58 × 10⁷ C kg⁻¹
For α-particle [e / m(α)] = 2 × 1.6 × 10⁻¹⁹ / 6.6 × 10⁻²⁷ = 4.84 × 10⁷ C kg⁻¹
Hence the ratio (e/m) for e > p > α
Related Questions: - What is the difference between soft and hard X-ray?
- The energy released in the fission of 1 kg of ₉₂U²³⁵ is (energy per fission = 200 MeV)
- A transformer is used to light a 100 W and 110 V lamp from a 220 V mains.
- The current in the coil of inductance 5H decreases at the rate of 2 A/s
- According to Hook’s law, force is proportional to
Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- What is the difference between soft and hard X-ray?
- The energy released in the fission of 1 kg of ₉₂U²³⁵ is (energy per fission = 200 MeV)
- A transformer is used to light a 100 W and 110 V lamp from a 220 V mains.
- The current in the coil of inductance 5H decreases at the rate of 2 A/s
- According to Hook’s law, force is proportional to
Topics: Dual Nature of Matter and Radiation (150)
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
Leave a Reply