AP EAMCET20225 Jul 2022Evening ShiftPhysicsMagnetic Effects of CurrentActual
A charged particle is moving in a uniform magnetic field penetrates a layer of lead and thereby loses half of its kinetic energy, then the radius of curvature of its path is
Options
- ANo change
- BReduced by 1 2 times of its initial values
- CReduced to 1 2 times of its initial values
- DReduce to 1 4 times of its initial values
Correct answer
C. Reduced to 1 2 times of its initial values
Step-by-step solution
We know that r= m V q B = 2 m(K . E) q B aligned & r K . E & r ₂ r ₁ = K E ₂ ~K E ₁ = 1 2 = 1 2 r ₂= r ₁ 2 aligned