- Zero
- ∞
- evB
- ILB
A neutron enters a magnetic field of strength B(Tesla) perpendicular to the magnetic lines of force, with speed v. The force on the neutron is
A neutron enters a magnetic field of strength B(Tesla) perpendicular to the magnetic lines of force, with speed v. The force on the neutron is zero.
Helping Concept
Because a neutron is a neutral particle and when it is entered into a magnetic field it will not deflect in the magnetic field. Only charged particles (electron or proton experience magnetic force).
Therefore, the correct option is (A).
- A photon of energy 1.02 MeV undergoes Compton scattering through 180^{o}. The energy of the scattered photon is
- For dispersive medium, group velocity V_{g }and phase velocity V_{p }are related as
- When the frequency of a sound wave is increased, which of the following will decrease?
- How many electrons does the atom have when an atom has filled n = 1 and n = 2 levels?
- Two masses m_{1} = 5 kg and m_{2} = 4.8 kg tied to a string hanging over a light frictionless pulley. What is the acceleration of the masses when left free to move?
- In a capacitor of capacitance 20 μF, the distance between the plates is 2 mm. If a dielectric slab of width 1 mm and dielectric constant 2 is inserted between the plates, then the new capacitance is
- A spring of force constant k is stretched by x. It takes twice as much work to stretch a second spring by x/2. The force constant of the second spring is
- A Carnot engine has an efficiency of 40% (heat sink 27^{o}C). To increase efficiency by 10%, the temperature is increased by
- The de Broglie wavelength of thermal neutrons at 27^{0}C is
- If a complex number Z is defined as Z = 2 + 2i then it can be expressed in the polar form as Z = re^{iθ }where r and θ are equal to
MSC Physics MCQs | |
0. | MSc Physics |
1. | Atomic Physics |
2. | Nuclear Physics |
3. | Modern Physics |
4. | Classical Physics |
5. | Solid State Physics |
6. | Electronics Physics |
7. | Classical Mechanics |
8. | Quantum Mechanics |
9. | Physical Wave Optics |
10. | Waves and Oscillations |
11. | Electromagnetic Theory |
12. | Special Theory of Relativity |
13. | Heat and Thermodynamics |
14. | Mathematical Method for Physics |