## Q1 Magnetic field well inside the solenoid is...

• (a)B = μ_{0}n I
• (b) B⃗ = μ_{0}n I
• (c) ∮ B⃗ . dl ⃗⃗⃗ = μ_{0} I
• (d) B. dl = μ_{0}.

• B = μ_{0}n I

## Q2 If charge enters the magnetic  field obliquely , then path  followed by it will be

• (a) Helical
• (b) Circular
• (c) Hyperbolic
• (d) Parabolic

• (a) Helical

## Q3  Cyclotron can accelerate

• (a) ꞵ particle
• (b) 𝜶 particle
• (c) High velocity gamma rays
• (d) High velocity X-rays

• (b) 𝜶 particle

## Q4 Angular frequency of a cyclotron is independent of

• (a) speed
• (b) mass
• (c) magnetic field
• (d) charge

• (a) speed

## Q5 Cyclotron can be used in

• (a) particle therapy to treat cancer
• (b) source of high energy beam for nuclear physics experiment
• (c) produce short lived positron emitting isotopes for PET imaging
• (d) all the above

• (d) all the above

## Q6 Cyclotron accelerates particles of mass ‘m’ and charge ‘q’ the energy of the particle emerging is proportional to

• (a) \frac{q^{2}}{m}
• (b) \frac{q^{2}}{B}
• (c) \frac{q}{m}
• (d) None of these

• (a)  \frac{q^{2}}{m}

• (a) True
• (b) False

• (a) True

## Q8 A cyclotron is used to accelerate ....

• (a) proton
• (b) Neutron
• (c) Alpha Particle
• (d) Both a and c

• (d) Both a and c

## Q9.  The current -carrying loop inside the magnetic field rotate due to the

• (a) Current acting on the coil
• (b) Torque acting on the coil
• (c) Couple acting on the coil
• (d) Light acting on the coil

• (b) Torque acting on the coil

## Q10 If a  charged particle  moves inside the magnetic field , magnitude of which quantity is not effected by the magnetic field

• (a) Time period
• (b) Velocity
• (c) Frequency
• (d) All of these

• (b) Velocity