Ratio of radii of particles with equal momentum or speed in a field
This type of question, asked 4 times: 2021 Paper 3, 2021 Paper 15, 26 Jun 2022, 3 Apr 2025. All 5 questions below, oldest first.
Try each one first, then open its answer.
Question 1
2021 Paper 3
9A proton, a deuteron and an particle are moving with same momentum in a uniform magnetic field. The ratio of magnetic forces acting on them is and their speeds are in the ratio .Tap an option to check your answer.
Question 2
2021 Paper 15
16Two particles having identical masses and charges 2Q and Q are moving with velocities and respectively, In uniform magnetic field . Find ratio of the radius of circle describe by themTap an option to check your answer.
Question 3
2021 Paper 15
13Two charges of equal magnitude are thrown with speeds ratio perpendicular to the magnetic field. If their masses are in the ratio of . Find ratio of the radii?Tap an option to check your answer.
Question 4
26 Jun 2022
14A proton and an alpha particle of the same speed enter in a uniform magnetic field which is acting perpendicular to their direction of motion. The ratio of the radii of the circular paths described by the alpha particle and proton is:Tap an option to check your answer.
Question 5
3 Apr 2025
95Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : If oxygen ion and Hydrogen ion enter normal to the magnetic field with equal momentum, then the path of ion has a smaller curvature than that of . Reason R : A proton with same linear momentum as an electron will form a path of smaller radius of curvature on entering a uniform magnetic field perpendicularly. In the light of the above statement, choose the correct answer from the options given belowTap an option to check your answer.