KVPY SX SB Exam 2018 Question Paper

Question : 37 of 120

Marks: +1, -0

The magnetic field is uniform for y > 0 and points into the plane. The magnetic field is uniform and points out of the plane for y < 0. A proton denoted by filled circle leaves y = 0 in the y-direction with some speed as shown below.

Which of the following best denotes the trajectory of the proton.

Validate

Solution:

From

F↖{→}= q(v ↖{→}×B↖{→})

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