Question

This question has Statement 1 and Statement 2. Of the four choices given after the Statements, choose the one that best describes the two Statements.
Statement 1 : A charged particle is moving at right angle to a static magnetic field. During the motion the kinetic energy of the charge remains unchanged.
Statement 2 : Static magnetic field exert force on a moving charge in the direction perpendicular to the magnetic field.

• A. Statement 1 is false, Statement 2 is true.
• B. Statement 1 is true, Statement 2 is true, Statement 2 is not the correct explanation of Statement 1.
• C. Statement 1 is true, Statement 2 is false.
• D. Statement 1 is true, Statement 2 is true, Statement 2 is the correct explanation of Statement 1.

Answer 1

Answer: (D)

When a charged particle enters the magnetic field in perpendicular direction then it experience a force in perpendicular direction.
$i.e.F=Bqvsin\theta$
Due to which it moves in a circular path.