Question 229: Magnetism and Matter

Question

Proton, deuteron and alpha particle of same kinetic energy are moving in circular trajectories in a constant magnetic field. The radii of proton, denuteron and alpha particle are  respectively $${r_p},{r_d}$$ and $${r_\alpha }$$.  Which one of the following relation is correct?

Accepted Answer

$$r = {{\sqrt {2mv} } \over {qB}} \Rightarrow r 	imes v{{\sqrt m } \over q}$$
Thus we have, $${r_\alpha } = {r_p} < {r_d}$$

Answer

$${r_\alpha } = {r_p} = {r_d}$$

Answer

$${r_\alpha } = {r_p} < {r_d}$$

Answer

$${r_\alpha } > {r_d} > {r_p}$$

Answer

$${r_\alpha } = {r_d} > {r_p}$$

Magnetism and Matter

Proton, deuteron and alpha particle of same kinetic energy are moving in circular trajectories in a constant magnetic field. The radii of proton, denuteron and alpha particle are respectively ${r_p},{r_d} and {r_\alpha }$. Which one of the following relation is correct?

Choose the correct answer: