NEET
- Exam
- NEET
- Subject
- Physics
- Chapter
- Magnetic Effects of Current
NEET · Physics · Magnetic Effects of Current
Assertion (A)When proton and a neutron enter into a transverse...
Assertion (A)When proton and a neutron enter into a transverse magnetic field with equal speeds, then they trace a circular paths of equal radii.
Reason (R) In a transverse magnetic field the period of revolution of a charged particle in a circular path is directly proportional to the mass of the particle.
Options
- ABoth ((\mathrm{A})) and ((\mathrm{R})) are correct and ((\mathrm{R})) is the correct explanation of .
- BBoth and are correct but is not the correct explanation of .
- C(A) is correct but (R) is not correct.
- D(A) is not correct but (R) is correct.
Correct answer
D. (A) is not correct but (R) is correct.
Step-by-step solution
(A) When a proton and a neutron enter into a transverse magnetic field with equal speeds, then they trace circular paths of equal radii.
This statement is not correct because neutron will not move in a circular path as there is no charge on neutron.
So, (A) is not correct but (R) is correct.
Hence, option (4) is correct.