A doubly ionized molecule (i. e., a molecule lacking two electrons) moving in a magnetic field experiences a magnetic force of 6.75 × 10 − 16 N 6.75×10−16 N as it moves at 207 m/s 207 m/s at 74.9 ∘ 74.9∘ to the direction of the field. Find the magnitude of the magnetic field.

The magnitude of the magnetic field is 10.19 T.

Explanation:

Given that,

Charge on the doubly charged molecule, q = 2e

Magnetic force,

Speed of molecule, v = 207 m/s

The angle to the direction of the field is 74.9 degrees.

We need to find the magnitude of magnetic field. The formula of magnetic force is given by :

B is magnetic field

So, the magnitude of the magnetic field is 10.19 T.

see earlier answer

wavelength divides in half and speed stays the same.