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.
| 1851. |
If the momentum of a body is doubled, the kinetic energy is _____. |
| A. | becomes 1/4 times |
| B. | Unchanged |
| C. | Doubled |
| D. | becomes 4 times |
| Answer» E. | |
| 1852. |
A colloidal solution is NOT ________. |
| A. | separated by simple sedimentation |
| B. | separated by centrifugation |
| C. | a heterogeneous mixuture |
| D. | seen very commonly in everyday life |
| Answer» B. separated by centrifugation | |
| 1853. |
A ball, thrown vertically upward, rises to a height of 80 m and returns to its original position. The magnitude of its displacement after 7 s of motion will be _______. (take g = 10m/s2) |
| A. | 35 m |
| B. | 125 m |
| C. | 45 m |
| D. | 25 m |
| Answer» B. 125 m | |
| 1854. |
Match List - I with List-II and select the correct answer from the codes given below the lists:List - I(Explanation)List – II(Term)A. Colour of an opaque object1. FluorescenceB. Colour observed through a coloured glass2. ReflectionC. Bending of the image of a rod partially dipped in water3. TransmissionD. Shining observed when one steps on an earthworm4. Refraction |
| A. | A-1, B-3, C-4, D-2 |
| B. | A-1, B-4, C-3, D-2 |
| C. | A-2, B-4, C-3, D-1 |
| D. | A-2, B-3, C-4, D-1 |
| Answer» E. | |
| 1855. |
Normal temperature of human body is 98.4 °F, Its equivalent temperature m °C is |
| A. | 40.16 |
| B. | 36.89 |
| C. | 35.72 |
| D. | 32.36 |
| Answer» C. 35.72 | |
| 1856. |
A boy of mass 50 kg runs up a staircase of 45 steps in 9s, the height of each step is 15 cm, find his power. (Take g = 10 m/s2): |
| A. | 375 W |
| B. | 325 W |
| C. | 275 W |
| D. | 475 W |
| Answer» B. 325 W | |
| 1857. |
An object is placed in front on a concave mirror at a point between its focus and centre of curvature. The image formed will be _____. |
| A. | Real and inverted |
| B. | Real and erect |
| C. | Virtual and inverted |
| D. | Virtual and erect |
| Answer» B. Real and erect | |
| 1858. |
During the night, the direction of the wind would be from the ________. |
| A. | Valleys to the mountains |
| B. | Mountains to the valleys |
| C. | Land to the ocean |
| D. | Ocean to the land |
| Answer» D. Ocean to the land | |
| 1859. |
A ball is thrown vertically upward with a speed of 40 m/s. The magnitude of its displacement after 5 s will be ________.(Take g = 10 m/s2) |
| A. | 50 m |
| B. | 75 m |
| C. | 65 m |
| D. | 80 m |
| Answer» C. 65 m | |
| 1860. |
Consider the following substances:A. Heavy waterB. GraphiteWhich of the substances given above is/are used as a moderator in a nuclear reactor? Select the code for the correct answer from the options given below: |
| A. | A only |
| B. | B only |
| C. | Both A and B |
| D. | Neither A nor B |
| Answer» D. Neither A nor B | |
| 1861. |
In which direction does the freely suspended magnetic needle stand? |
| A. | North-West direction |
| B. | North-South direction |
| C. | North-East direction |
| D. | South-West direction |
| Answer» C. North-East direction | |
| 1862. |
Calculate the current flowing through a resistor of 10Ω when a potential difference of 140V is applied across it. |
| A. | 14 Amperes |
| B. | 140 Amperes |
| C. | 1400 Amperes |
| D. | 1.4 Amperes |
| Answer» B. 140 Amperes | |
| 1863. |
In which of the following activities is work said to be done? |
| A. | Khushi is pushing a wall of a house but fails to do so |
| B. | Harsh is reading a book |
| C. | Pinki is walking on a levelled road with a book on her head |
| D. | Shruti is sitting on a chair |
| Answer» D. Shruti is sitting on a chair | |
| 1864. |
A car accelerates uniformly from 18 kmh-1 to 36 kmh-1 in 5 sec. Calculate the acceleration of Car. |
| A. | 1 ms-2 |
| B. | 4 ms-2 |
| C. | 4 ms2 |
| D. | 1 ms2 |
| Answer» B. 4 ms-2 | |
| 1865. |
In liquids, a small fraction of particles at the surface have: |
| A. | more potential energy |
| B. | more kinetic energy |
| C. | less potential energy |
| D. | less kinetic energy |
| Answer» C. less potential energy | |
| 1866. |
In physics, what is the Hubble constant? |
| A. | Permittivity in space |
| B. | Total power of electromagnetic radiation |
| C. | Speed of light in vacuum |
| D. | Unit of measurement that explains the expansion of the universe |
| Answer» E. | |
| 1867. |
An electric bulb having voltage 240 V and current 0.6 A has a power of _____. |
| A. | 14.4 W |
| B. | 40 W |
| C. | 144 W |
| D. | 400 W |
| Answer» D. 400 W | |
| 1868. |
If a current of 1.5 A is maintained in a resistor of 10 Ohm, then the energy dissipated in the resistor in 1 minute will be: |
| A. | 1350 W |
| B. | 15 W |
| C. | 135 W |
| D. | 22.5 W |
| Answer» B. 15 W | |
| 1869. |
Light can travel ______ km in a year.A. 5 billionB. 10 billionC. 5 trillionD. 10 trillion |
| A. | B |
| B. | C |
| C. | D |
| D. | A |
| Answer» D. A | |
| 1870. |
If a ship is approaching the shore from the deep sea, which portion of the ship would be first seen by a person standing on the seashore? |
| A. | Mast |
| B. | Deck |
| C. | Whole ship |
| D. | Hull |
| Answer» B. Deck | |
| 1871. |
1 kWh = _________. |
| A. | 3.6 × 106 J |
| B. | 3.6 × 105 J |
| C. | 3.6 × 10-5 J |
| D. | 3.6 × 10-6 J |
| Answer» B. 3.6 × 105 J | |
| 1872. |
A person clapped his hands near a cliff and heard echo after 6 s. The distance of the cliff from the person is:[take v = 346 ms-1] |
| A. | 1038 m |
| B. | 1083 m |
| C. | 2076 m |
| D. | 2706 m |
| Answer» B. 1083 m | |
| 1873. |
An echo is returned in 3 s. What is the distance of the reflecting surface from the source, considering the speed of sound as 342 ms-1? |
| A. | 644 m |
| B. | 171 m |
| C. | 342 m |
| D. | 513 m |
| Answer» E. | |
| 1874. |
Let We and Wm be the weight of an object on the Earth and the Moon, respectively, Then, the We / Wm is equal to ______ |
| A. | 6 |
| B. | 4 |
| C. | 1 |
| D. | 2 |
| Answer» B. 4 | |
| 1875. |
If a potato is placed on a pure paper plate which is white and unprinted and put in a microwave oven, the potato heats up but the paper plate does not This is because |
| A. | Potato is mainly made up of starch whereas paper is mainly made up of cellulose |
| B. | Potato transmits microwaves whereas paper reflects microwaves |
| C. | Potato contains water whereas paper does not contain water |
| D. | Potato is a fresh organic material whereas paper is a dead organic material |
| Answer» D. Potato is a fresh organic material whereas paper is a dead organic material | |
| 1876. |
A monkey sitting on a branch of a tree suddenly falling down towards the ground is an example of _______. |
| A. | Law of conservation of energy |
| B. | Kepler's laws |
| C. | Newton's third law of motion |
| D. | Law of conservation of mass |
| Answer» B. Kepler's laws | |
| 1877. |
Parsec is the unit of _______. |
| A. | Distance |
| B. | Time |
| C. | Brightness |
| D. | Metic force |
| Answer» B. Time | |
| 1878. |
An object of mass 13 kg is moving with a uniform velocity of 5 ms-1. What is the kinetic energy possessed by the object? |
| A. | 187.5 J |
| B. | 17.5 J |
| C. | 162.5 J |
| D. | 162.5 ms |
| Answer» D. 162.5 ms | |
| 1879. |
In which of the following, heat loss is primarily not due to convection? |
| A. | Boiling water |
| B. | Land and sea breeze |
| C. | Circulation of air around blast furnace |
| D. | Heating of glass surface of a bulb due to current in filament |
| Answer» E. | |
| 1880. |
_______ remains unchanged when a sound wave travels in a medium. |
| A. | Amplitude |
| B. | Frequency |
| C. | Speed |
| D. | Wavelength |
| Answer» C. Speed | |
| 1881. |
If the acceleration due to gravity on the surface of the earth is g, then the acceleration due to gravity on the surface of a planet whose mass is half of that of earth and radius is same as that of the earth is _________. |
| A. | g/2 |
| B. | 4g |
| C. | 2g |
| D. | g/4 |
| Answer» B. 4g | |
| 1882. |
A porter lifts a luggage of 20 kg from the ground and puts it on his head 2 m above the ground. Calculate the work done by him on the luggage. (take g = 10ms-2) |
| A. | 400 J |
| B. | 200 J |
| C. | 350 J |
| D. | 150 J |
| Answer» B. 200 J | |
| 1883. |
If the amplitude of oscillation of a simple pendulum is very small, then its time period of oscillation.1. depends on the length of the pendulum, L2. depends on the acceleration due to gravity, g3. depends upon the mass of the bob of the pendulum, m4. does not depend upon the amplitude of the pendulum, ASelect the correct answer using the code given below: |
| A. | 1, 2 and 3 |
| B. | 1, 2 and 4 |
| C. | 2, 3 and 4 |
| D. | 1 and 4 only |
| Answer» C. 2, 3 and 4 | |
| 1884. |
1n0 + 235U92 → 140Ba56 + yKr36 + 31n0. Find y from the given fission equation of an uranium nucleus? |
| A. | 91 |
| B. | 95 |
| C. | 93 |
| D. | 92 |
| Answer» D. 92 | |
| 1885. |
Kilowatt hour is the _____ of electric energy. |
| A. | current |
| B. | SI unit |
| C. | resistance |
| D. | commercial unit |
| Answer» E. | |
| 1886. |
A common fluorescent tube contains ________. |
| A. | Argon vapour |
| B. | Mercury vapour |
| C. | Sodium vapour |
| D. | Neon vapour |
| Answer» C. Sodium vapour | |
| 1887. |
In the gamma decay of a nucleus ______________. |
| A. | the mass number of the nucleus changes whereas its atomic number does not change |
| B. | the mass number of the nucleus does not change whereas its atomic number changes |
| C. | both the mass number and the atomic number of the nucleus change |
| D. | neither the mass number nor the atomic number of the nucleus changes. |
| Answer» E. | |
| 1888. |
In hydropower plants, which energy of water is utilised to generate electricity? |
| A. | Kinetic energy |
| B. | Thermal energy |
| C. | Potential energy |
| D. | Chemical energy |
| Answer» D. Chemical energy | |
| 1889. |
Nuclear fusion reaction is based on which of the following equation? |
| A. | E = mc2 |
| B. | E = m2c |
| C. | C2 = em |
| D. | E2 = mc |
| Answer» B. E = m2c | |
| 1890. |
Bending of light rays in the denser medium is termed as ________. |
| A. | Reflection |
| B. | Dispersion |
| C. | Refraction |
| D. | Deflection |
| Answer» D. Deflection | |
| 1891. |
Radioactivity is the characteristic of which of the following? |
| A. | Nucleus |
| B. | Electron |
| C. | Proton |
| D. | Neutron |
| Answer» B. Electron | |
| 1892. |
In a CANDU type of Nuclear reactors, which is true? |
| A. | Natural Uranium is used as fuel and water as moderator |
| B. | Natural Uranium is used as fuel and heavy water as moderator |
| C. | Enriched Uranium is used as fuel and water as moderator |
| D. | Enriched Uranium is used as fuel and heavy water as moderator |
| Answer» C. Enriched Uranium is used as fuel and water as moderator | |
| 1893. |
atomic mass unit (u) is equivalent to ____________ the mass of carbon isotope C-12. |
| A. | 12 times |
| B. | 1/12th |
| C. | 1/6th |
| D. | 6 times |
| Answer» C. 1/6th | |
| 1894. |
Acceleration is ________. |
| A. | Inversely proportional to force |
| B. | Inversely proportional to mass |
| C. | Directly proportional to force |
| D. | Both 2 and 3 |
| Answer» E. | |
| 1895. |
At which of the following place, the weight of an object is maximum? |
| A. | At poles |
| B. | At equator |
| C. | At tropic of Capricorn |
| D. | At tropic of cancer |
| Answer» B. At equator | |
| 1896. |
Measure of Frequency is _____? |
| A. | Meter |
| B. | Second |
| C. | Hertz |
| D. | Newton Meter |
| Answer» D. Newton Meter | |
| 1897. |
Name the simple device that is used to either break the electric circuit or to complete it. |
| A. | Resistor |
| B. | Transistor |
| C. | Switch |
| D. | Fuse |
| Answer» D. Fuse | |
| 1898. |
A car falls of a ledge and drops to the ground in 0.7 s. (let g = 10 ms2). What is its speed on striking the ground? |
| A. | 6 ms-1 |
| B. | 8 ms-1 |
| C. | 4 ms-1 |
| D. | 7 ms-1 |
| Answer» E. | |
| 1899. |
1 Coulomb/1s = _____ |
| A. | 1 volt |
| B. | 1 ampere |
| C. | 1 watt |
| D. | 1 ohm |
| Answer» C. 1 watt | |
| 1900. |
Due to which scientific phenomenon does a stick, when partly immersed in water, appears to be bent? |
| A. | Dispersion |
| B. | Refraction |
| C. | Scattering |
| D. | Reflection |
| Answer» C. Scattering | |