MCQOPTIONS
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MCQOPTIONS
This section includes 281 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.
| 251. |
Which of following is not a |
| A. | Speed |
| B. | Velocity |
| C. | Torque |
| D. | Displacement |
| Answer» B. Velocity | |
| 252. |
Which of the following is vector quantity? |
| A. | Momentum |
| B. | Pressure |
| C. | Energy |
| D. | Work |
| Answer» B. Pressure | |
| 253. |
Pick out the only |
| A. | Power |
| B. | Electric fileld |
| C. | Magnetic momentum |
| D. | Average Velocity |
| Answer» B. Electric fileld | |
| 254. |
Masses of stars and galaxies |
| A. | Neutron mass |
| B. | Earth's mass |
| C. | Solar mass |
| D. | Lunar mass |
| Answer» D. Lunar mass | |
| 255. |
Bernoulli's principle |
| A. | Curved path of a spinning ball |
| B. | Lift of a jet |
| C. | Working of a paint sprayer |
| D. | Automatic blowing of the roofs of houses during blizzard in hilly areas. |
| Answer» C. Working of a paint sprayer | |
| 256. |
A ball is dropped from a spacecraft revolving around the earth. It will |
| A. | Continue to move with the same speed along the original orbit of the space craft |
| B. | Move with the same speed tangentially to the orbit |
| C. | Fall down to the earth |
| D. | Move away from the earth |
| Answer» B. Move with the same speed tangentially to the orbit | |
| 257. |
A rocket works on the principle of conservation of |
| A. | Mass |
| B. | Linear momentum |
| C. | Energy |
| D. | Angular momentum |
| Answer» C. Energy | |
| 258. |
A satellite revolves around the earth in elliptic orbit, its speed is |
| A. | Same at all points on the orbit |
| B. | Greatest when it is farthest from the earth |
| C. | Greatest when it is closest to the earth |
| D. | None of the above |
| Answer» D. None of the above | |
| 259. |
Select the only correct statement from the following |
| A. | The orbital velocity of a satellite increases with the radius of the orbit |
| B. | Escape velocity of a particle from the surface of earth depends on the speed with it is fired |
| C. | The time period of a satellite does not depend on the radius of the orbit |
| D. | The orbital velocity is inversely proportional to the square root of the radius of the orbit |
| Answer» E. | |
| 260. |
A girl is swinging on a swing in the sitting position. How will the period of swing be affected if she stands up? |
| A. | The period will now be shorter |
| B. | The period will now be longer |
| C. | The period will remain unchanged |
| D. | None of the above |
| Answer» B. The period will now be longer | |
| 261. |
A simple pendulum has a time period T |
| A. | 1 |
| B. | 2 |
| C. | 4 |
| D. | 2 |
| Answer» E. | |
| 262. |
The plane of the orbit of an earth satellite |
| A. | Passes through the centre of the earth |
| B. | Does not pass through the centre of the earth |
| C. | May or may not pass through the centre of the earth |
| D. | Oscillates about the centre of the earth |
| Answer» B. Does not pass through the centre of the earth | |
| 263. |
Match List with List-II and select the correct answer using the codes given below |
| A. | A. |
| B. | B. |
| C. | C. |
| D. | D. |
| Answer» B. B. | |
| 264. |
If want to calculate the pressure of a liquid at the bottom of vessel, the quantity which is not required to determine it, is |
| A. | Height of the liquid column |
| B. | Surface area of the bottom of the vessel |
| C. | Density of the liquid |
| D. | Acceleration due to gravity at the bottom of the vessel |
| Answer» C. Density of the liquid | |
| 265. |
Three identical vessels A, B and C are filled with water, mercury and kerosene respectively up to a equal height. The three vessels are provided with identical taps at the bottom of the vessels. If the three taps are opened simultaneously, them which vessel is emptied first? |
| A. | Vessel B |
| B. | All the vessel A, B and C will be emptied simultaneously |
| C. | Vessel A |
| D. | Vessel C |
| Answer» E. | |
| 266. |
A car is running on a road at a uniform speed of 60 km/h. The net resultant force on the car is |
| A. | Driving force in the direction of car's motion |
| B. | Resistance force opposite to the direction of car's motion |
| C. | An inclined force |
| D. | Equal to zero |
| Answer» E. | |
| 267. |
For a body float in a liquid with some portion outside, the weight of the liquid displaced by the fully immersed body |
| A. | Should be equal to the weight of the body |
| B. | Should be more than the weight of the body |
| C. | Should be less than the weight of the body |
| D. | None of the above |
| Answer» C. Should be less than the weight of the body | |
| 268. |
When two bodies stick together after the collision is said to be |
| A. | Perfectly elastic |
| B. | Partially elastic |
| C. | Completely inelastic |
| D. | None of these |
| Answer» D. None of these | |
| 269. |
In an elastic collision |
| A. | Momentum is conserved but energy is not |
| B. | Energy is conserved but momentum is not |
| C. | Both momentum and energy are conserved |
| D. | Neither momentum nor energy is conserved |
| Answer» D. Neither momentum nor energy is conserved | |
| 270. |
Two pieces of different metals, when completely immersed in water, experience equal upthrust then |
| A. | Both pieces have equal weight in air |
| B. | Both pieces have same density |
| C. | Both pieces have equal volume |
| D. | None of the above |
| Answer» D. None of the above | |
| 271. |
A satellite revolves around the earth in a circular orbit, If gravitational pull suddenly disappear, then it |
| A. | Continues to move with the same speed along the same path |
| B. | Falls down with increasing speed |
| C. | Moves with the same speed tangential to the original orbit |
| D. | Comes to rest after moving a certain distance along the original path |
| Answer» D. Comes to rest after moving a certain distance along the original path | |
| 272. |
A ball is thrown vertically upwards. Assuming the air resistance to be constant and considerable |
| A. | The time of ascent the time of descent |
| B. | the time of ascent the time of descent |
| C. | The time of ascent = the time of descent |
| D. | The time of ascent > the time of descent |
| Answer» B. the time of ascent the time of descent | |
| 273. |
A man inside an artificial satellite feels weightlessness because the force of attraction due to earth is |
| A. | Zero at that earth is |
| B. | Is balanced by the force of attraction due to moon |
| C. | Equal to centripeated force |
| D. | Non-effective due to particular design of the satelltie |
| Answer» B. Is balanced by the force of attraction due to moon | |
| 274. |
In order that a floating object be in stable equilibrium, its centre of buoyancy |
| A. | Should be vertically above its centre of gravity |
| B. | Should be vertically below its centre of gravity |
| C. | Should be horizontally in line with its centre of gravity. |
| D. | May be anywhere |
| Answer» B. Should be vertically below its centre of gravity | |
| 275. |
A light body A and a heavy body B have equal kinetic energies of translation. Then |
| A. | A has larger momentum than B |
| B. | B has larger momentum than A |
| C. | A and B have same momentum |
| D. | none of the above |
| Answer» C. A and B have same momentum | |
| 276. |
An inflated balloon is floating on the surface of water. It is pushed so as to submerge completely and then released. It will |
| A. | Remain submerged at the same place |
| B. | Sink to the bottom |
| C. | Come back to its earlier position |
| D. | First sink to the bottom and then come up |
| Answer» D. First sink to the bottom and then come up | |
| 277. |
If hole is bored along a diameter of the earth and a stone is dropped into the hole it will |
| A. | Reach the centre of the earth and stop there |
| B. | Reach the other side of the earth and stop there |
| C. | Execute S.H.M. about the centre of the earth |
| D. | Execute oscillatory, but not simple harmonic motion about the centre of earth |
| Answer» D. Execute oscillatory, but not simple harmonic motion about the centre of earth | |
| 278. |
An inflated balloon rises to a definite height once it starts going up. This balloon can not rise any further because at that height |
| A. | Atmosphere pressure reduces to zero |
| B. | Acceleration due to gravity reduces to zero |
| C. | Density of the balloon reduces to zero |
| D. | Apparent weight of the balloon reduces to zero |
| Answer» E. | |
| 279. |
It is easier to swim in a sea water than in ordinary water because |
| A. | Atmospheric pressure is highest at sea level |
| B. | Sea water contains salt |
| C. | Density of sea water is higher than that of ordinary water |
| D. | Density of sea water is less than that of ordinary water |
| Answer» D. Density of sea water is less than that of ordinary water | |
| 280. |
Match List-I (quantity) with List-II (units) and select the correct answer using the codes given below the lists |
| A. | A. |
| B. | B. |
| C. | C. |
| D. | D. |
| Answer» E. | |
| 281. |
Match List-I with List-II and select the correct answer using the codes given below |
| A. | A. |
| B. | B. |
| C. | C. |
| D. | D. |
| Answer» C. C. | |