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A beam of electron passes undeflected through mutually perpendicular electric and magnetic fields. If the electric field is switched off, and the same magnetic field is maintained, the electrons move
Options
(a) in a circular orbit
(b) along a parabolic path
(c) along a straight line
(d) in an elliptical orbit.
Correct Answer:
in a circular orbit
Explanation:
If the electric field switched off, and the same magnetic field is maintained, the electrons move in a ciruclar orbit and electron will travel a magnetic field to its velocity.
Related Questions: - A particle of mass 1 mg has the same wavelength as an electron moving with a velocity
- Light of frequency 8×10¹⁵ Hz is incident on a substance of photoelectric work
- Calcium plate has a maximum possible radiation wavelength 400 nm to eject electrons.
- If c is the velocity of light in free space, the time taken by light to travel
- A parallel plate condenser with a dielectric of dielectric constant K between the plates
Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A particle of mass 1 mg has the same wavelength as an electron moving with a velocity
- Light of frequency 8×10¹⁵ Hz is incident on a substance of photoelectric work
- Calcium plate has a maximum possible radiation wavelength 400 nm to eject electrons.
- If c is the velocity of light in free space, the time taken by light to travel
- A parallel plate condenser with a dielectric of dielectric constant K between the plates
Topics: Magnetic Effects of Current and Magnetism (167)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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