Ions Having Equal Charges but Masses of M and 2M

question 34

Multiple Choice

Ions having equal charges but masses of M and 2M are accelerated through the same potential difference and then enter a uniform magnetic field perpendicular to their path.If the heavier ions follow a circular arc of radius R,what is the radius of the arc followed by the lighter?

• A) 4R
• B) 3R
• C) R
• D) R/
• E) R/2