| ⇦ | 
| ⇨ |
Hard X-rays for the study of fractures in bones should have a minimum wavelength of 10⁻¹¹ m. The accelerating voltage for electrons in X-ray machine should be
Options
(a) <124.2 kV
(b) >12.4 KV
(c) between 60 kV and 70 kV
(d) (=100 kV)
Correct Answer:
>12.4 KV
Explanation:
Minimum Wavelength λ = hc / eV = (1.242 × 10⁻⁶) / V
V = (1.242 × 10⁻⁶) / 10⁻¹¹ = 124.2 kV
The accelerating voltage for electron in X-ray is 124.2 kV
Related Questions: - A particle executes simple harmonic oscillations with an amplitude
- If temperature of gas increases from 27°C to 927°C, the kinetic energy will be
- The kinetic energy of an electron in the first excited state is
- 40 g of Argon is heated from 40⁰C to 100⁰C (R=2 cal/mole). Heat absorbed at constant
- The power obtained in a reactor using U²³⁵ disintegration is 1000 kW
Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A particle executes simple harmonic oscillations with an amplitude
- If temperature of gas increases from 27°C to 927°C, the kinetic energy will be
- The kinetic energy of an electron in the first excited state is
- 40 g of Argon is heated from 40⁰C to 100⁰C (R=2 cal/mole). Heat absorbed at constant
- The power obtained in a reactor using U²³⁵ disintegration is 1000 kW
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