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.
| 1351. |
A system exhibiting S.H.M. must possess |
| A. | lasticity as well as inertia |
| B. | lasticity, inertia and an external force |
| C. | lasticity only |
| D. | nertia only |
| Answer» B. lasticity, inertia and an external force | |
| 1352. |
When a person sitting on a swing stands up on the swing, the frequency of oscillation |
| A. | ecreases |
| B. | ncreases |
| C. | ecomes infinite |
| D. | oes not change |
| Answer» C. ecomes infinite | |
| 1353. |
Period of oscillation of 3 cm microwaves in seconds is |
| A. | × 1010 |
| B. | × 10–10 |
| C. | 0.01 |
| D. | 0.001 |
| Answer» C. 0.01 | |
| 1354. |
Which one of the following physical quantities has the same dimensions as that of Planck's constant? |
| A. | inear momentum |
| B. | ngular momentum |
| C. | orce |
| D. | otential energy |
| Answer» C. orce | |
| 1355. |
The dimensional formula for universal gravitational constant is |
| A. | 1L3T2 |
| B. | L2T–2 |
| C. | –2 |
| D. | –1L3T–2 |
| Answer» E. | |
| 1356. |
The transport phenomenon occurs only in ________ state of a gas and is ________ |
| A. | on-equilibrium, irreversible |
| B. | on-equilibrium, reversible |
| C. | quilibrium, irreversible |
| D. | quilibrium, reversible |
| Answer» D. quilibrium, reversible | |
| 1357. |
Amount of water vapour in the atmosphere is measured in terms of |
| A. | umidity |
| B. | roplets |
| C. | mog |
| D. | ll of the above |
| Answer» B. roplets | |
| 1358. |
A copper disc has a hole. If the disc is heated, the size of the hole |
| A. | ncreases |
| B. | ecreases |
| C. | o change |
| D. | irst increases and than decreases |
| Answer» B. ecreases | |
| 1359. |
A metal plate with a circular hole at the centre is heated. What will happen to the area of the hole ? |
| A. | ncrease |
| B. | acrease |
| C. | emain constant |
| D. | ill increase first and then dcrease |
| Answer» B. acrease | |
| 1360. |
The spring balance works on the principle of ________ . |
| A. | oyle's Law |
| B. | ooke's Law |
| C. | ernoulli's principle |
| D. | ascal's Law |
| Answer» C. ernoulli's principle | |
| 1361. |
The ''four stroke petrol engine' is based on |
| A. | arnot-cycle |
| B. | tto-cycle |
| C. | iesel-cycle |
| D. | oyle's-cycle |
| Answer» C. iesel-cycle | |
| 1362. |
A circular plate, a cube and a sphere, all made up of same material and having the samemass, are heated to 300°C and left in a room. Which of them will have the slowest rate of cooling? |
| A. | ircular plate |
| B. | ube |
| C. | phere |
| D. | ll will cool at the same rate |
| Answer» D. ll will cool at the same rate | |
| 1363. |
Supercooling is cooling of liquid ________ |
| A. | elow melting point |
| B. | elow freezing point |
| C. | t melting point |
| D. | bove melting point |
| Answer» C. t melting point | |
| 1364. |
If there is a circular hole in a metal plate, what happens to the radius of the hole when the plate is heated? |
| A. | ncreases |
| B. | ecreases |
| C. | nchanged |
| D. | epends upon the metal |
| Answer» B. ecreases | |
| 1365. |
The instrument that measures and records the relative humidity of air is |
| A. | ydrometer |
| B. | ygrometer |
| C. | actometer |
| D. | arometer |
| Answer» C. actometer | |
| 1366. |
A real gas can act as an ideal gas in |
| A. | igh pressure and low temperature |
| B. | ow pressure and high temperature |
| C. | igh pressure and high temperature |
| D. | ow pressure and low temperature |
| Answer» C. igh pressure and high temperature | |
| 1367. |
The characteristic invalid for heat radiation is that it travels : |
| A. | n a straight line |
| B. | n all directions |
| C. | ith the speed of light |
| D. | eating the medium through which it passes |
| Answer» D. eating the medium through which it passes | |
| 1368. |
Which of these branches of Physics deal with heat and temperature and their relation to energy and work? |
| A. | eophysics |
| B. | echanics |
| C. | tomic Physics |
| D. | hermodynamics |
| Answer» E. | |
| 1369. |
In a refrigerator what produces the cooling ? |
| A. | he ice which deposits on the freezer |
| B. | he sudden expansion of a compressed gas |
| C. | he evaporation of a volatile liquid |
| D. | one of these |
| Answer» E. | |
| 1370. |
In a refrigerator, the cooling system should always be |
| A. | t the top |
| B. | t the bottom |
| C. | t the middle |
| D. | an be anywhere |
| Answer» C. t the middle | |
| 1371. |
If the earth suddenly stop rotating, the value of "g" will be |
| A. | ame |
| B. | ncrease |
| C. | ecrease |
| D. | ecome Zero |
| Answer» C. ecrease | |
| 1372. |
The term ''equinox' means |
| A. | he path which the Earthtakes around the Sun |
| B. | he axis of the Earth around which it rotates |
| C. | hen the day and night are of equal duration |
| D. | he time when the Sun seems to be going round and round in the sky in the Arctic but does not go below the horizon |
| Answer» D. he time when the Sun seems to be going round and round in the sky in the Arctic but does not go below the horizon | |
| 1373. |
The Law of Kepler is related with which among the following ? |
| A. | lanetary Motion |
| B. | aw of Conservation of energy |
| C. | aw of Gravitation |
| D. | one |
| Answer» B. aw of Conservation of energy | |
| 1374. |
A bomb explodes on the moon. You will hear its sound on earth after ________ |
| A. | 0 minutes |
| B. | hours 20 minutes |
| C. | .7 hours |
| D. | ou cannot hear the sound of explosion |
| Answer» E. | |
| 1375. |
We always see the same face of the moon, because |
| A. | t is smaller than the earth |
| B. | t revolves on its axis in adirection opposite to that ofthe earth |
| C. | t takes equal time for revolution around the earth and rotation on its own axis |
| D. | t rotates at the same speed as the earth around the sun |
| Answer» D. t rotates at the same speed as the earth around the sun | |
| 1376. |
In the absence of the earth's atmosphere, sky would appear |
| A. | lue |
| B. | eep red |
| C. | hite |
| D. | lack |
| Answer» E. | |
| 1377. |
Which of the following is correct about the properties of Gravitational Forces? |
| A. | hey are the strongest forces in nature |
| B. | hey observe inverse square law |
| C. | oth a and b |
| D. | one |
| Answer» C. oth a and b | |
| 1378. |
The different colours of different stars are due to the variation of |
| A. | emperature |
| B. | ressure |
| C. | ensity |
| D. | adiation from them |
| Answer» B. ressure | |
| 1379. |
The sensation of weightlessness in a spacecraft in an orbit is due to the |
| A. | bsence of gravity outside |
| B. | cceleration in the orbit which is equal to the acceleration due to gravity outside |
| C. | resence of gravity outside but not inside the spacecraft |
| D. | act that spacecraft in the orbit has no energy |
| Answer» C. resence of gravity outside but not inside the spacecraft | |
| 1380. |
What is the escape velocity of the rocket in the earth? |
| A. | 2.2 km/sec |
| B. | 0.2 km/sec |
| C. | 3.2 km/sec |
| D. | 1.2 km/sec |
| Answer» E. | |
| 1381. |
If the spinning speed of the earth is increased then the weight of body at the equator |
| A. | ncreases |
| B. | ecreases |
| C. | ame |
| D. | ouble |
| Answer» C. ame | |
| 1382. |
The weight of a body acts through the centre of |
| A. | ravity |
| B. | ass |
| C. | oth (A) and (B) |
| D. | uoyancy |
| Answer» B. ass | |
| 1383. |
By how many times are the Electrostatic forces stronger than the Gravitational Forces for a fixed distance? |
| A. | 02 |
| B. | 036 |
| C. | 012 |
| Answer» C. 012 | |
| 1384. |
Intensity of gravitational field of earth is maximum at |
| A. | oles |
| B. | quator |
| C. | entre of earth |
| D. | urface |
| Answer» B. quator | |
| 1385. |
The instrument used to see the distant objects on the Earth is |
| A. | errestrial telescope |
| B. | stronomical telescope |
| C. | ompound microscope |
| D. | imple microscope |
| Answer» B. stronomical telescope | |
| 1386. |
The height of a geo-stationary satellite from the Earth's surface is approximately : |
| A. | 6,000 km |
| B. | 2,000 km |
| C. | 0,000 km |
| D. | one of these |
| Answer» B. 2,000 km | |
| 1387. |
Who gave the Theory of Relativity? |
| A. | saac Newton |
| B. | rchimedes |
| C. | lbert Einstein |
| D. | alileo Galilei |
| Answer» D. alileo Galilei | |
| 1388. |
The laws which govern the motion of planets are called ________ |
| A. | ewton's Laws |
| B. | epler's Laws |
| C. | vogadro's laws |
| D. | e Morgan's Laws |
| Answer» C. vogadro's laws | |
| 1389. |
The period of revolution of a geostationary satellite is |
| A. | 65 days |
| B. | 0 days |
| C. | 4 hours |
| D. | hanging continuously |
| Answer» D. hanging continuously | |
| 1390. |
What is the minimum escape velocity of rocket to be launched into space ? |
| A. | Km/Sec. |
| B. | Km/Sec. |
| C. | 1 Km/Sec. |
| D. | 5 Km/Sec. |
| Answer» D. 5 Km/Sec. | |
| 1391. |
The velocity required to place a vehicle in orbit around the moon is ________ that required to place it in orbit round the earth. |
| A. | ess than |
| B. | reater than |
| C. | qual to |
| D. | reater than or equal to |
| Answer» B. reater than | |
| 1392. |
A person can jump higher on the moon's surface than on the earth because : |
| A. | he moon's surface is rough |
| B. | he acceleration due to gravity in moon is smaller than that on the earth. |
| C. | he moon is cooler than earth |
| D. | he moon has no atmosphere |
| Answer» C. he moon is cooler than earth | |
| 1393. |
The large collection of stars, dust and gas held together by gravitational attraction between components is known as |
| A. | luster |
| B. | tmosphere |
| C. | alaxy |
| D. | un Family |
| Answer» D. un Family | |
| 1394. |
The period of revolution of a certain planet in an orbit of radius R is T. Its period of revolution in an orbit of radius 4R will be: |
| A. | T |
| B. | T |
| C. | T |
| D. | T |
| Answer» B. T | |
| 1395. |
Which of the following celestial bodies contains abundant quantities of helium-3, a potential source of energy ? |
| A. | arth |
| B. | oon |
| C. | enus |
| D. | aturn |
| Answer» C. enus | |
| 1396. |
The mass of a star is two times the mass of the Sun. How it will come to an end ? |
| A. | eutron Star |
| B. | lack hole |
| C. | hite Dwarf |
| D. | ed Giant |
| Answer» B. lack hole | |
| 1397. |
The velocity of heat radiation in vacuum is |
| A. | qual to that of light |
| B. | ess than that of light |
| C. | reater than that of light |
| D. | qual to that of sound |
| Answer» B. ess than that of light | |
| 1398. |
________ states that internal energy is a function of state and the increase in internal energy is equal to the sum of the heat supplied to system and work done by the system. |
| A. | irst law of thermodynamics |
| B. | ooke's Law |
| C. | he coulomb's law |
| D. | araday's Law |
| Answer» B. ooke's Law | |
| 1399. |
In a diesel engine the high temperature needed to ignite the fuel is achieved by |
| A. | sing heat from exhaust |
| B. | he battery |
| C. | ompressing air in the cylinders |
| D. | n electrical spark |
| Answer» D. n electrical spark | |
| 1400. |
Which of the following is not reversible? |
| A. | oule effect |
| B. | eltier effect |
| C. | eebeck effect |
| D. | homson effect |
| Answer» B. eltier effect | |