MCQOPTIONS
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MCQOPTIONS
This section includes 2016 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
A certain household has consumed 9 × 108 joules of energy in a month. Find the energy in units? |
| A. | 250 units |
| B. | 2500 units |
| C. | 25 units |
| D. | 0.25 units |
| Answer» B. 2500 units | |
| 152. |
A particle moves with uniform acceleration along a straight line from rest. The percentage increase in displacement during the sixth’ second compared to that in the fifth second is about |
| A. | 11% |
| B. | 22% |
| C. | 33% |
| D. | 44% |
| Answer» C. 33% | |
| 153. |
Quantitatively, the inertia of an object is measured by __________ |
| A. | its weight |
| B. | the product of its mass and velocity |
| C. | its mass |
| D. | the product of its mass and acceleration |
| Answer» D. the product of its mass and acceleration | |
| 154. |
A 2,000 kg truck moving at 10 m/s strikes a car waiting at a traffic light. After the collision, the two move together at 8 m/s. The mass of the car is _____ if total energy before and after collision remain conserved. |
| A. | 250 kg |
| B. | 500 kg |
| C. | 750 kg |
| D. | 1,000 kg |
| Answer» C. 750 kg | |
| 155. |
An object weighs 60 N when measured on the surface of the Earth. What would be its weight on the surface of the Moon? |
| A. | 10 N |
| B. | 10 kg |
| C. | 360 N |
| D. | 360 KG |
| Answer» B. 10 kg | |
| 156. |
If 2 A of current is flowing in a conductor from a battery of 5V, then the resistance of the conductor is : |
| A. | 2 Ohm |
| B. | 2.5 Ohm |
| C. | 0.4 Ohm |
| D. | 10 Ohm |
| Answer» C. 0.4 Ohm | |
| 157. |
In which of the following examples will an athlete have a maximum accelerated motion? |
| A. | Running on a circular track |
| B. | Running on a hexagonal track |
| C. | Running on an octagonal track |
| D. | Running on a rectangular track |
| Answer» B. Running on a hexagonal track | |
| 158. |
______ is the "work done in moving a unit charge between two points in an electric circuit". |
| A. | Potential |
| B. | Current |
| C. | Power |
| D. | Resistance |
| Answer» B. Current | |
| 159. |
An object starts from rest at x= 0 and t = 0. It moves with a constant acceleration of 3m/s2 along the x-axis. What is its average velocity between time 4 s to 8 s? |
| A. | 12 m/s |
| B. | 3 m/s |
| C. | 6 m/s |
| D. | 18 m/s |
| Answer» E. | |
| 160. |
_______ is an agent that moves or tends to move or stops or tends to stop a body. |
| A. | Watt |
| B. | Work |
| C. | Force |
| D. | Joule |
| Answer» D. Joule | |
| 161. |
A radioactive isotope has a half-life of 'T' years. How long will it take the activity to reduce to 6.25%? |
| A. | 3T |
| B. | 5T |
| C. | 6T |
| D. | 4T |
| Answer» E. | |
| 162. |
A person weighs more in a lift which is? |
| A. | Moving down with a constant velocity |
| B. | Moving up with a constant velocity |
| C. | Accelerating downward |
| D. | Accelerating upward |
| Answer» E. | |
| 163. |
In a nuclear power plant based on pressurised-water reactor, which substance is used both as the moderator and as the heat transfer medium? |
| A. | air |
| B. | hydrogen |
| C. | nitrogen |
| D. | water |
| Answer» E. | |
| 164. |
1 m/s equals _______ km/hr. |
| A. | 5/16 |
| B. | 16/5 |
| C. | 18/5 |
| D. | 5/18 |
| Answer» D. 5/18 | |
| 165. |
Momentum is a measure of ______. |
| A. | Speed |
| B. | Mass |
| C. | Quantity of motion |
| D. | Force |
| Answer» C. Quantity of motion | |
| 166. |
A porter lifts a luggage of 14 kg from the ground and puts it on his head 1.5 m above the ground. Calculate the work done by him on the luggage. |
| A. | 140 J |
| B. | 155 J |
| C. | 210 N |
| D. | 210 J |
| Answer» E. | |
| 167. |
An object of mass 80 kg is moving with a velocity of 60 ms-1 Then the momentum of the object is ___________. |
| A. | 4800 kgms2 |
| B. | 4800 kgms-1 |
| C. | 4800 kgms1 |
| D. | 4800 kgms-2 |
| Answer» C. 4800 kgms1 | |
| 168. |
In Force equation, F is equal to: |
| A. | Ma |
| B. | mgh |
| C. | Mv |
| D. | u+at |
| Answer» B. mgh | |
| 169. |
Modified cathodes are called corona particles in the ray tube- |
| A. | Canal rays |
| B. | Ultraviolet Rays |
| C. | Neutron |
| D. | X-rays |
| Answer» B. Ultraviolet Rays | |
| 170. |
3H1 + 3H1 → 4He2 + 2 ________ |
| A. | protons |
| B. | neutrons |
| C. | positrons |
| D. | electrons |
| Answer» C. positrons | |
| 171. |
Latent heat of fusion of ice is ________. |
| A. | 65 cal/g |
| B. | 54 cal/g |
| C. | 12 cal/g |
| D. | 80 cal/g |
| Answer» E. | |
| 172. |
During the melting of solid, its temperature ________. |
| A. | May increase or decrease depending on the nature of solid |
| B. | Decreases |
| C. | Does not change |
| D. | increases |
| Answer» D. increases | |
| 173. |
A cylindrical wire of length L and radius r has resistance R. The resistance of another wire of the same material but of twice its length and one-fourth its radius is: |
| A. | 32R |
| B. | 8R |
| C. | R |
| D. | 16R |
| Answer» B. 8R | |
| 174. |
Because of which phenomenon a lemon kept in water in a glass tumbler appears to be bigger than its actual size? |
| A. | Reflection of light |
| B. | Refraction of light |
| C. | Total internal reflection |
| D. | Mirage |
| Answer» C. Total internal reflection | |
| 175. |
A stone is thrown into a deep lake. As it sinks deeper and deeper into the water, the upthrust acting on it? |
| A. | Decreases |
| B. | First decreases then increases |
| C. | Increases |
| D. | Remains constant |
| Answer» E. | |
| 176. |
A ball of mass m is dropped from a height H. At height H/3, the ratio of its potential energy (PE) to kinetic energy (KE) is equal to: |
| A. | 1/4 |
| B. | 1 |
| C. | 1/3 |
| D. | 1/2 |
| Answer» E. | |
| 177. |
If water in a lake were to behave like other liquids, then in extremely cold weather it would freeze? |
| A. | From top to bottom |
| B. | From bottom to top |
| C. | Simultaneously through the depth |
| D. | First on the surface, bottom and sides and then in the interior |
| Answer» C. Simultaneously through the depth | |
| 178. |
How much energy does a 100 W electric bulb transfer In 1 minute ? |
| A. | 100 J |
| B. | 3600 J |
| C. | 6000 J |
| D. | 600 J |
| Answer» D. 600 J | |
| 179. |
Convex mirror is used as: |
| A. | Solar cooker |
| B. | Shaving glass |
| C. | Rear view mirror in vehicles |
| D. | In ophthalmoscope |
| Answer» D. In ophthalmoscope | |
| 180. |
Diamagnetic substances are the ones in which the resultant magnetic moment in an atom is ________. |
| A. | positive and small |
| B. | negative |
| C. | positive and large |
| D. | zero |
| Answer» E. | |
| 181. |
A device used for measuring the depth of the sea is called? |
| A. | Fathometer |
| B. | Hydrometer |
| C. | Manometer |
| D. | Altimeter |
| Answer» B. Hydrometer | |
| 182. |
Match the following with the correct response:(1) W (A) Nm(2) kW (B) 3.6x 106 J(3) 1 kW - h (C) 1000 W(4) 1 HP (D) 746 W |
| A. | 1-D, 2-B, 3-C, 4-A |
| B. | 1-A, 2-C, 3-B, 4-D |
| C. | 1-A, 2-B, 3-C, 4-D |
| D. | 1-A, 2-C, 3-D, 4-B |
| Answer» C. 1-A, 2-B, 3-C, 4-D | |
| 183. |
How does a bulb glow when the switch is turned on? |
| A. | The filaments touch each other |
| B. | The filaments expand |
| C. | The filaments get heated up due to current and lights up |
| D. | Current does not flow through circuit |
| Answer» D. Current does not flow through circuit | |
| 184. |
In a longitudinal wave, the distance between two consecutive compressions and two consecutive rarefactions is called: |
| A. | Matter |
| B. | Wavelength |
| C. | Magnitude |
| D. | Energy |
| Answer» C. Magnitude | |
| 185. |
Electromotive force of a cell is - |
| A. | a force between the two terminals. |
| B. | a current flowing across the cell plates. |
| C. | maximum voltage between the two terminals in open circuit. |
| D. | voltage between the two terminals in closed circuit. |
| Answer» B. a current flowing across the cell plates. | |
| 186. |
Escape velocity on the earth’s surface is ________ . |
| A. | 4.9 km/s |
| B. | 5 km/s |
| C. | 11.2 km/s |
| D. | 10.2 km/s |
| Answer» D. 10.2 km/s | |
| 187. |
Find the power of a convex lens if the image formed is at a distance of 20 cm from the lens when the object is placed on the other side of the lens at 25 cm from the optical centre? |
| A. | 1 dioptre |
| B. | 6 dioptre |
| C. | 9 dioptre |
| D. | 2 dioptre |
| Answer» D. 2 dioptre | |
| 188. |
How many fundamental units are there? |
| A. | 4 |
| B. | 7 |
| C. | 5 |
| D. | 9 |
| Answer» C. 5 | |
| 189. |
Electric current is considered to be the flow of _________. |
| A. | Negative charges |
| B. | Dielectric |
| C. | magnet pieces |
| D. | Positive charges |
| Answer» B. Dielectric | |
| 190. |
Rajat has hypermetropia. What type of lens will the ophthalmologist recommend to correct his vision? |
| A. | Progressive |
| B. | Concave |
| C. | Bifocal |
| D. | Convex |
| Answer» E. | |
| 191. |
Negative acceleration occurs in the opposite direction of: |
| A. | Velocity |
| B. | Force |
| C. | Distance |
| D. | Momentum |
| Answer» B. Force | |
| 192. |
How will the emergent ray be after refraction of light through a glass slab? |
| A. | The emergent ray and the incident rays are random |
| B. | The emergent ray is at 90 degrees to the incident ray |
| C. | The incident ray goes without deflection and emergent ray is same as the incident ray |
| D. | The emergent ray is parallel to the incident ray |
| Answer» E. | |
| 193. |
1 watt is equal to 1 _________. |
| A. | J s-1 |
| B. | J s |
| C. | J s-2 |
| D. | J s2 |
| Answer» B. J s | |
| 194. |
Clouds float in the atmosphere because of their _____? |
| A. | Low Temperature |
| B. | Low Viscosity |
| C. | Low Pressure |
| D. | Low Density |
| Answer» E. | |
| 195. |
At the top of the mountain, cooking of food takes a lot of time because: |
| A. | Pressure is more at the top of the mountain |
| B. | Boiling point of water is more at the top of the mountain |
| C. | Boiling point of water is less at the top of the mountain |
| D. | Melting point of water is less at the top of the mountain |
| Answer» D. Melting point of water is less at the top of the mountain | |
| 196. |
An elevator descends into a mine shaft at the rate of 7.5 m/minute. If the descend starts from 35 m above ground, how long will it take to reach the mine that is 430 m below ground? |
| A. | 57.33 Minutes |
| B. | 66 Minutes |
| C. | 62 Minutes |
| D. | 52.67 Minutes |
| Answer» D. 52.67 Minutes | |
| 197. |
One joule is approximately equal to ________. |
| A. | 0.28 calorie |
| B. | 54 calorie |
| C. | 0.24 calorie |
| D. | 42 calorie |
| Answer» D. 42 calorie | |
| 198. |
A body of mass 2 kg is thrown upward with an initial velocity of 20 m/s. After 2 seconds, its kinetic energy will be: (g = 10 m/s2) |
| A. | 100 J |
| B. | 0 J |
| C. | 400 J |
| D. | 200 J |
| Answer» C. 400 J | |
| 199. |
A force increases the speed of a 1.0 kg object from 4 m/s to 8 m/s. The work done by the force will be ______. |
| A. | 8 J |
| B. | 32 J |
| C. | 24 J |
| D. | 16 J |
| Answer» D. 16 J | |
| 200. |
Atmospheric pressure is measured with a _______. |
| A. | Hygrometer |
| B. | Barometer |
| C. | Hydrometer |
| D. | Altimeter |
| Answer» C. Hydrometer | |