MCQOPTIONS
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MCQOPTIONS
This section includes 301 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
When is body of an animal is connected to the earth, then electron from the earth flow into the body. It means that the body of the animal is |
| A. | Negatively charged |
| B. | An insulator |
| C. | Uncharged |
| D. | Positively charged |
| Answer» E. | |
| 202. |
The inherent property of all matter is / are |
| A. | Paramagnetism |
| B. | Diamagnetism |
| C. | Ferromagnetism |
| D. | All of these |
| Answer» C. Ferromagnetism | |
| 203. |
Au, Ag, Cu, Zn, Sb, Bi, H |
| A. | Diamagnetic |
| B. | Paramagnetic |
| C. | Ferromagnetic |
| D. | None of these |
| Answer» B. Paramagnetic | |
| 204. |
Thermocouple thermometer is based on |
| A. | Seebeck effect |
| B. | Compton effect |
| C. | Peltier effect |
| D. | Photoelectric effect |
| Answer» B. Compton effect | |
| 205. |
In a charged capacitor the energy is stored in |
| A. | Positive charge |
| B. | Both in positive and negative charge |
| C. | The electric field between the plates |
| D. | The edges of the capacitor plates |
| Answer» D. The edges of the capacitor plates | |
| 206. |
Specific resistance of a conductor increases with |
| A. | Increase in temperature |
| B. | Increase in cross-section area |
| C. | Decrease in cross-section area |
| D. | None of the above |
| Answer» B. Increase in cross-section area | |
| 207. |
The magnetic field lines in the middle of a solenoid are |
| A. | Circle |
| B. | Parallel to the axis |
| C. | Spirals |
| D. | Perpendicular to the axis |
| Answer» C. Spirals | |
| 208. |
The reciprocal of specific resistance is |
| A. | Conductive resistance |
| B. | Specific conductance |
| C. | Resistance |
| D. | Plate resistance |
| Answer» C. Resistance | |
| 209. |
Na, AI, Mn and Pt are examples of |
| A. | Diamagnetic |
| B. | Paramagnetic |
| C. | Ferromagnetic |
| D. | None of these |
| Answer» C. Ferromagnetic | |
| 210. |
Fe, Co and Ni are examples of |
| A. | Ferromagnetic |
| B. | Paramagnetic |
| C. | Diamagnetic |
| D. | None of theses |
| Answer» B. Paramagnetic | |
| 211. |
If the rotational velocity of a dynamo armature is doubled, then the induced emf will |
| A. | Become half |
| B. | Become double |
| C. | Remain unchanged |
| D. | None of these |
| Answer» C. Remain unchanged | |
| 212. |
An example for diamagnetic substance is |
| A. | Copper |
| B. | Iron |
| C. | Nickel |
| D. | aluminium |
| Answer» B. Iron | |
| 213. |
The coil of an electric heater is made of |
| A. | Aluminium |
| B. | Tungsten |
| C. | Nichrome |
| D. | None of these |
| Answer» D. None of these | |
| 214. |
The S.I unit of electric field is |
| A. | Newton / coulomb |
| B. | Joule / coulomb |
| C. | Volt - meter |
| D. | Newton / metre |
| Answer» B. Joule / coulomb | |
| 215. |
Electron volt (eV) is a unit of |
| A. | Energy |
| B. | Potential |
| C. | Current |
| D. | Charge |
| Answer» B. Potential | |
| 216. |
Magnetite is a / an |
| A. | Natural magnet |
| B. | Electromagnet |
| C. | U-shaped magnet |
| D. | None of these |
| Answer» B. Electromagnet | |
| 217. |
The heating element of an electric heater should be made of a material having |
| A. | High specific resistance and high melting point |
| B. | High specific resistance and low melting point |
| C. | Low specific resistance and low melting point |
| D. | Low specific resistance and high melting point |
| Answer» B. High specific resistance and low melting point | |
| 218. |
The work done in moving a positive charge on an equipotential surface is |
| A. | Finite and positive |
| B. | Infinite |
| C. | Finite and negative |
| D. | Zero |
| Answer» E. | |
| 219. |
Identity the paramagnetic substance |
| A. | Iron |
| B. | Aluminium |
| C. | Nickel |
| D. | Copper |
| Answer» C. Nickel | |
| 220. |
When a positively charged conductor is earth connected |
| A. | Protons flow from the conductor to the earth |
| B. | Electrons flow from the earth to the conductor |
| C. | Electrons flow from the conductor to the earth |
| D. | No charge flow occurs |
| Answer» C. Electrons flow from the conductor to the earth | |
| 221. |
The dielectirc constant of metals is |
| A. | 1 |
| B. | greater than 1 |
| C. | 0 |
| D. | infinite |
| Answer» E. | |
| 222. |
'mho' is the unit of |
| A. | Resistance |
| B. | Specific resistance |
| C. | Conductivity |
| D. | None of these |
| Answer» D. None of these | |
| 223. |
Eddy currents are produced in a material when it is |
| A. | Heated |
| B. | Placed in an electric field |
| C. | Placed in a time varying magnetic field |
| D. | Placed in a uniform magnetic field |
| Answer» D. Placed in a uniform magnetic field | |
| 224. |
Laws of electrolysis is given by |
| A. | Faraday |
| B. | Maxwell |
| C. | Lenz |
| D. | Bohar |
| Answer» B. Maxwell | |
| 225. |
In a hydel station the motion produced in turbines is due to the |
| A. | Burning of coal |
| B. | Burning of diesel |
| C. | Flow of water |
| D. | Production of steam |
| Answer» D. Production of steam | |
| 226. |
Vibration magnetometer works on the principle of |
| A. | Torque acting on the bar magnet |
| B. | Force acting on the bar magnet |
| C. | Both the force and the torque acting on the bar magnet |
| D. | None of the above |
| Answer» B. Force acting on the bar magnet | |
| 227. |
When a body is earth connected electrons from the earth flow into the body. This means the body is |
| A. | Charged negatively |
| B. | An insulator |
| C. | Uncharged |
| D. | Charged positively |
| Answer» E. | |
| 228. |
Why does the experience a strong shock when one accidentally touches a live wire of say, 220 V ? |
| A. | The resistance of human body is very low |
| B. | The resistance of human body is very high |
| C. | The human body is sensitive to even feeble current |
| D. | The human body is sensitive to large currents only |
| Answer» D. The human body is sensitive to large currents only | |
| 229. |
Tangent galvanometer is used to measure |
| A. | Steady currents |
| B. | Currents impulses |
| C. | Kilo farad |
| D. | Mega farad |
| Answer» C. Kilo farad | |
| 230. |
If a proton is brought towards an electron from infinity, the potential energy of the system will |
| A. | Devrease |
| B. | Increase |
| C. | Remain unchanged |
| D. | First increase and then decrease |
| Answer» B. Increase | |
| 231. |
A thermoelectric couple is made from copper and iron. At the hot junction, current |
| A. | Flows from copper towards iron |
| B. | Flows from iron towards copper |
| C. | Flow decreases |
| D. | Flow increases |
| Answer» B. Flows from iron towards copper | |
| 232. |
A substance which radiates light when heated to a light temperature is each to be |
| A. | Luminescent |
| B. | Incandescent |
| C. | Fluorescent |
| D. | Phosphorescent |
| Answer» C. Fluorescent | |
| 233. |
The resistance of an ideal ammeter is |
| A. | 100 |
| B. | Infinite |
| C. | Intensively high |
| D. | Zero |
| Answer» E. | |
| 234. |
Three different capacitors are connected in series then |
| A. | They will have equal charges |
| B. | They will have same potential |
| C. | Both (a) and (b) |
| D. | None of the above |
| Answer» B. They will have same potential | |
| 235. |
Equal charges are given to two spheres of different radii. The potential will be |
| A. | More on smaller sphere |
| B. | More on smaller sphere |
| C. | Equal on both the spheres |
| D. | None of the above |
| Answer» B. More on smaller sphere | |
| 236. |
Two electron beams are travelling parallel to each other. They |
| A. | Attract each other |
| B. | Repel each other |
| C. | Do not affect each other |
| D. | None of these |
| Answer» C. Do not affect each other | |
| 237. |
Kirchhoffs two laws for electrical circuits are manifestations of the conservation of |
| A. | Charge only |
| B. | Momentum only |
| C. | Energy only |
| D. | Both energy and charge |
| Answer» E. | |
| 238. |
The current sensitivity of a moving coil galvanometer depends on |
| A. | The number of turns in the coil |
| B. | Moment of inertia of the coil |
| C. | Strength of the magnetic field |
| D. | Both (a) and (c) |
| Answer» E. | |
| 239. |
Equal charges are given to two spheres of different radii. The potential will |
| A. | Be more on the smaller sphere |
| B. | Be more on the bigger sphere |
| C. | Be equal on both the sphere |
| D. | Depend on the nature of the material of the sphere |
| Answer» B. Be more on the bigger sphere | |
| 240. |
The specific resistance of a wire |
| A. | Varies with its length |
| B. | Varies with its cross-section |
| C. | Varies with its mass |
| D. | Does not depends on its length, cross-section and mass |
| Answer» E. | |
| 241. |
Time period in a vibration magnetometer will be infinite |
| A. | At magnetic equator |
| B. | At geographic equator |
| C. | At magnetic pole |
| D. | No where |
| Answer» D. No where | |
| 242. |
Demagnetisation of a magnet can be done by |
| A. | Rough handling |
| B. | Heating |
| C. | magnetising in the opposite direction |
| D. | All by the above |
| Answer» E. | |
| 243. |
Which one of the following is not made of soft iron? |
| A. | Electromagnet |
| B. | Core of transformer |
| C. | Core of dynamo |
| D. | Magnet of loudspeaker |
| Answer» E. | |
| 244. |
Consider the following statements regarding a motor car battery |
| A. | 1 and 2 |
| B. | 2 and 3 |
| C. | 3 and 4 |
| D. | 1 and 4 |
| Answer» E. | |
| 245. |
A DC voltmeter is capable of measuring a maximum of 300 volts. if it is used to measure the voltage across a device operating at 200 voltage AC supply, the reading of the voltmeter will be |
| A. | 300 volt |
| B. | 220 volt |
| C. | 110 volt |
| D. | 0 volt |
| Answer» E. | |
| 246. |
The circuit element where the impressed voltage is always in phase with the resulting current is |
| A. | An ideal resistor |
| B. | An ideal capacitor |
| C. | An ideal coil |
| D. | An ideal transformer |
| Answer» B. An ideal capacitor | |
| 247. |
A permanent magnet repels |
| A. | Ferromagnetic substances only |
| B. | Diamagnetic substances only |
| C. | Paramagnetic substances only |
| D. | Both paramagnetic and diamagnetic substances |
| Answer» C. Paramagnetic substances only | |
| 248. |
The inductance of coil is proportional to |
| A. | Its length |
| B. | The number of turns |
| C. | The resistance of the coil |
| D. | The square of the number of turns |
| Answer» E. | |
| 249. |
A.C power is transmitted from a power house at a high voltages because |
| A. | The rate of transmission is faster at high voltages |
| B. | It is more economical due to less power loss |
| C. | Power cannot bee transmitted at low voltage |
| D. | A precaution against theft of transmission line |
| Answer» C. Power cannot bee transmitted at low voltage | |
| 250. |
Which one of the following statements is correct ? The space surrounding a charge in uniform motion has |
| A. | Only an electric held |
| B. | Only a magnetic fields |
| C. | Both electric and magnetic fields |
| D. | Neither an electric field nor a magnetic field |
| Answer» D. Neither an electric field nor a magnetic field | |