MCQOPTIONS
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MCQOPTIONS
This section includes 754 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
The source of geothermal energy is___________________? |
| A. | decay of radioactive element in the earth |
| B. | compression of material in the earth |
| C. | residual lost of the earth |
| D. | all as said in A – B and C |
| Answer» E. | |
| 202. |
The size of one degree of Celsius is equal to_________________? |
| A. | One degree of Fahrenheit scale |
| B. | 1.8 degrees of Fahrenheit scale |
| C. | 3.2 degrees of Fahrenheit scale |
| D. | 2.12 degrees of Fahrenheit scale |
| Answer» C. 3.2 degrees of Fahrenheit scale | |
| 203. |
The simplest type of rectification known as half wave rectification is obtained by____________________? |
| A. | using a transistor |
| B. | suppressing the harmonics in A.C voltage |
| C. | suppressing half wave of A.C supply by using diode |
| D. | using a Coolidge tube |
| Answer» D. using a Coolidge tube | |
| 204. |
The SI unit of Heat is________? |
| A. | Watt |
| B. | Volt |
| C. | Joule |
| D. | Newton |
| Answer» D. Newton | |
| 205. |
The SI unit of force constant is identical with that of__________________? |
| A. | Force |
| B. | Pressure |
| C. | Surface tension |
| D. | Loudness |
| Answer» D. Loudness | |
| 206. |
The sharpness of resonance is__________________? |
| A. | Directly proportional to the damping force |
| B. | Inversely proportional to the damping force |
| C. | Equal to the square of damping force |
| D. | Equal to the square of damping force |
| Answer» C. Equal to the square of damping force | |
| 207. |
The shaft of a motor rotates at a constant angular speed of 360rev/min. Angle turned through in 1 sec in radian is________________? |
| A. | π |
| B. | 3π |
| C. | 6π |
| D. | 12π |
| Answer» E. | |
| 208. |
The sensitivity of a galvanometer is given by__________________? |
| A. | C/BAN |
| B. | CAN/B |
| C. | BAN/C |
| D. | ABC/N |
| Answer» B. CAN/B | |
| 209. |
The semiconductor diode can be used as a rectifier because _______________? |
| A. | It has low resistance to the current flow when forward biased & high resistance when reverse biased. |
| B. | It has low resistance to the current flow when forward biased. |
| C. | It has high resistance to the current flow when reverse biased |
| D. | Its conductivity increases with rise of temperature. |
| Answer» B. It has low resistance to the current flow when forward biased. | |
| 210. |
The scales of temperature are based on two fixed points which are_________________? |
| A. | The temperatures of water at 0? 100?C |
| B. | The temperature of melting ice and boiling water at atmospheric pressure |
| C. | The temperatures of ice cold and boiling water |
| D. | The temperatures of frozen and boiling mercury |
| Answer» C. The temperatures of ice cold and boiling water | |
| 211. |
The rotational K.E of the hoop is equal to the______________? |
| A. | its translational K.E |
| B. | half than its translational K.E |
| C. | double than its translational K.E |
| D. | four times than its translational K.E |
| Answer» B. half than its translational K.E | |
| 212. |
The resultant of two forces of equal magnitudes is also equal to the magnitude of the forces. The angle between the two forces is________________? |
| A. | 30° |
| B. | 60° |
| C. | 90° |
| D. | 120° |
| Answer» E. | |
| 213. |
The restoring force acting on the simple pendulum is given by_______________? |
| A. | mg sin θ |
| B. | mg sin θ |
| C. | mg cos θ |
| D. | mg cos θ |
| Answer» C. mg cos θ | |
| 214. |
The resistance of a conductor at absolute zero (OK) is________________? |
| A. | zero almost |
| B. | infinite almost |
| C. | no prediction at all |
| D. | may increase or decrease |
| Answer» B. infinite almost | |
| 215. |
The relativistic energy E is equivalent to relativistic mass given by_______________? |
| A. | Ec2 |
| B. | E/c2 |
| C. | E/c |
| D. | c2/E |
| Answer» C. E/c | |
| 216. |
The relationship between Tesla and smaller unit Gauss of magnetic induction is given by_________________? |
| A. | 1T = 103 G |
| B. | 1T = 10-4 G |
| C. | 1T = 10-2 G |
| D. | 1T = 104 G |
| Answer» E. | |
| 217. |
The relation between the escape velocity V esc and orbital speed Vo is given by________________? |
| A. | V esc = 1/2Vo |
| B. | V esc = -2 Vo |
| C. | V esc = Vo |
| D. | V esc = 2Vo |
| Answer» C. V esc = Vo | |
| 218. |
The relation between linear and angular acceleration is______________? |
| A. | a = a x r |
| B. | a = r x a |
| C. | a = a x r |
| D. | r = a x a |
| Answer» D. r = a x a | |
| 219. |
The relation between horse power and watt is_________________? |
| A. | 1 hp = 546 watts |
| B. | 1 hp = 746 watts |
| C. | 1 hp = 1000 watts |
| D. | 1 hp = 946 watts |
| Answer» C. 1 hp = 1000 watts | |
| 220. |
The rectangular voltage is an example of____________________? |
| A. | An analogue waveform |
| B. | Continuous wave form |
| C. | Electronic waveform |
| D. | A digital waveform |
| Answer» E. | |
| 221. |
The rectangular coordinate system is also called______________? |
| A. | Polar coordinate system |
| B. | Cartesian coordinate system |
| C. | Cylindrical coordinate system |
| D. | Spherical coordinate system |
| Answer» C. Cylindrical coordinate system | |
| 222. |
The ration stress to strain in youngs modulus of the material then tension is__________________? |
| A. | Directly proportional to extension |
| B. | Directly proportional to strain |
| C. | Directly proportional to square of amplitude |
| D. | Inversely proportional to extension |
| Answer» B. Directly proportional to strain | |
| 223. |
The range of the projectile at 30 deg and 60 deg are__________________? |
| A. | equal to 45 deg |
| B. | equal to 90 deg |
| C. | equal to each other |
| D. | none of the above |
| Answer» D. none of the above | |
| 224. |
The radius of geostationary orbit from the centre of the earth is nearly______________? |
| A. | 42000km |
| B. | 36000km |
| C. | 24000 km |
| D. | 18000 km |
| Answer» B. 36000km | |
| 225. |
The radiations emitted form hydrogen filled discharge tube show____________? |
| A. | band spectrum |
| B. | line spectrum |
| C. | continuous spectrum |
| D. | absorption spectrum |
| Answer» C. continuous spectrum | |
| 226. |
The purpose of flywheel in the engines is________________? |
| A. | to smooth out the energy variation |
| B. | to add more weight to engine to work it stable |
| C. | to start engine |
| D. | both A and B |
| Answer» B. to add more weight to engine to work it stable | |
| 227. |
The projection of the particle moving in a circle with non-uniform speed executes ? |
| A. | S.H.M |
| B. | Vibratory motion |
| C. | Both B and D |
| D. | None S.H.M |
| Answer» D. None S.H.M | |
| 228. |
The profile of aeroplane wing which lifts it up is called as_____________? |
| A. | Wing shape |
| B. | Aerofoil profile |
| C. | Curved profile |
| D. | None of these |
| Answer» C. Curved profile | |
| 229. |
The product of the frequency and time period is equal to_________________? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» B. 2 | |
| 230. |
The pressure exerted by a column of mercury 76cm high and at 0°C is called_______________? |
| A. | 1 atmosphere |
| B. | 1 Newton per square meter |
| C. | 1 Pascal |
| D. | data is insufficient |
| Answer» B. 1 Newton per square meter | |
| 231. |
The power of a concave lens is_______________? |
| A. | real |
| B. | virtual |
| C. | positive |
| D. | negative |
| Answer» E. | |
| 232. |
The planet nearest to the earth is______________? |
| A. | Venus |
| B. | Mercury |
| C. | Uranus |
| D. | Sun |
| Answer» B. Mercury | |
| 233. |
The physics of moving charge particles is known as__________? |
| A. | Plasma physics |
| B. | Electro-static’s |
| C. | Electro-magnetic |
| D. | Electro-dynamics |
| Answer» E. | |
| 234. |
The phase of SHM describes________________? |
| A. | Displacement only |
| B. | The direction of motion only |
| C. | Both displacement and direction of motion |
| D. | Neither displacement nor direction of motion |
| Answer» D. Neither displacement nor direction of motion | |
| 235. |
The phase angle between the voltage and the current in an AC circuit consisting of a resistance is______________? |
| A. | Zero |
| B. | 45° |
| C. | 90° |
| D. | 180° |
| Answer» B. 45° | |
| 236. |
The periodic alternation of sound between maximum and minimum loudness are called___________________? |
| A. | silence zone |
| B. | interference |
| C. | beats |
| D. | resonance |
| Answer» D. resonance | |
| 237. |
The period of a circular motion is given by_______________? |
| A. | T = πv |
| B. | T = πw |
| C. | T = 2πr |
| D. | T = 2πr/v |
| Answer» E. | |
| 238. |
The performance of a refrigerator is described by________________? |
| A. | efficiency |
| B. | coefficient of performance |
| C. | both A and B |
| D. | not described |
| Answer» C. both A and B | |
| 239. |
The penetration power of alpha particle as compared to beta particle is_______________? |
| A. | 10 times more |
| B. | 100 times more |
| C. | 100 times less |
| D. | 10 times less |
| Answer» C. 100 times less | |
| 240. |
The penetrating power of X-rays depends on their______________? |
| A. | applied voltage |
| B. | frequency |
| C. | source |
| D. | all of the above |
| Answer» C. source | |
| 241. |
The path of alpha particle is_______________? |
| A. | Rectilinear |
| B. | Curved |
| C. | Zig-zag or erratic |
| D. | Elliptical |
| Answer» D. Elliptical | |
| 242. |
The operational amplifier is______________? |
| A. | A high gain amplifier |
| B. | A high-power amplifier |
| C. | A high resistance amplifier |
| D. | A low resistance amplifier |
| Answer» B. A high-power amplifier | |
| 243. |
The operation of a transistor requires______________? |
| A. | That the emitter be heated |
| B. | That the base be heated |
| C. | That the collector be heated |
| D. | None of the above |
| Answer» E. | |
| 244. |
The number of significant figures in the length of a bar 6200mm measured by meter rod is_______________? |
| A. | 4 |
| B. | 3 |
| C. | 2 |
| D. | None of these |
| Answer» B. 3 | |
| 245. |
The number of significant figures in 5.400 is________________? |
| A. | 3 |
| B. | 5 |
| C. | 2 |
| D. | None |
| Answer» E. | |
| 246. |
The number of categories in which physical quantities are divided is_____________? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 247. |
The number of beats produced per second is equal to____________________? |
| A. | the sum of the frequencies of two tuning forks |
| B. | the difference of the frequencies of two tuning forks |
| C. | the ratio of the frequencies of two tuning forks |
| D. | the frequency of either of the two tuning forks |
| Answer» C. the ratio of the frequencies of two tuning forks | |
| 248. |
The number 76.85 is rounded off up to two significant figures as_____________? |
| A. | 76.8 |
| B. | 77 |
| C. | 76.9 |
| D. | None of these |
| Answer» C. 76.9 | |
| 249. |
The normal ear is the most sensitive in the frequency range___________________? |
| A. | 20000 to 30000 hertz |
| B. | 10 to 20 hertz |
| C. | 2000 to 4000 hertz |
| D. | 6000 to 8000 hertz |
| Answer» D. 6000 to 8000 hertz | |
| 250. |
The normal blood pressure range for a human body is______________? |
| A. | 120 to 80 torr |
| B. | 100 to 80 torr |
| C. | 120 to 60 torr |
| D. | 60 to 140 torr |
| Answer» D. 60 to 140 torr | |