Question 168: Magnetism and Matter

Question

A proton, a deuteron and an $$\alpha$$ particle are moving with same momentum in a uniform magnetic field. The ratio of magnetic forces acting on them is _________ and their speed is _______, in the ratio.

Accepted Answer

F = qvB = q$${p \over m}$$B
F $$ \propto $$ $${q \over m}$$ [as p, B are const.]
$$ 	herefore $$ F
1
: F
2
: F
3
= $${e \over m}:{e \over {2m}}:{{2e} \over {4m}}$$
= 2 : 1 : 1
And v
1
: v
2
: v
3
= $${p \over m}:{p \over {2m}}:{p \over {4m}}$$
= 4 : 2 : 1

Answer

2 : 1 : 1 and 4 : 2 : 1

Answer

4 : 2 : 1 and 2 : 1 : 1

Answer

1 : 2 : 4 and 2 : 1 : 1

Answer

1 : 2 : 4 and 1 : 1 : 2

Magnetism and Matter

A proton, a deuteron and an $\alpha$ particle are moving with same momentum in a uniform magnetic field. The ratio of magnetic forces acting on them is ___ and their speed is _, in the ratio.

Choose the correct answer:

Magnetism and Matter

A proton, a deuteron and an $\alpha$ particle are moving with same momentum in a uniform magnetic field. The ratio of magnetic forces acting on them is _________ and their speed is _______, in the ratio.

Choose the correct answer:

A proton, a deuteron and an $\alpha$ particle are moving with same momentum in a uniform magnetic field. The ratio of magnetic forces acting on them is ___ and their speed is _, in the ratio.