A deuteron and an alpha particle having equal kinetic energy enter perpendicularly into a magnetic field. Let rd and r$$\alpha$$ be their respective radii of circular path. The value of $${{{r_d}} \over {{r_\alpha }}}$$ is equal to :
- A1
- B2
- C$$\sqrt 2 $$
- D$${1 \over {\sqrt 2 }}$$
✓ Correct answer: C
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