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Current Affairs January 2024

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4

The pressure of air at high altitude is less than the atmospheric pressure at the sea level. Hence the boning point of water at a hill top

A. is more than at sea level

B. is equal to that sea level

C. is less than at sea level

D. depends on the surrounding temperature

Correct Answer :

C. is less than at sea level


Related Questions

What is the correct answer?

4

The pressure of air at high altitude is less than the atmospheric pressure at the sea level. Hence the boning point of water at a hill top

A. is more than at sea level

B. is equal to that sea level

C. is less than at sea level

D. depends on the surrounding temperature

What is the correct answer?

4

A cyclist leans inwards when he is negotiating a curve 10 that

A. he may increase his speed

B. his weight may be reduced

C. necessary centripetal force may be available from the horizontal component of the normal reaction due to the track to maintain the curved motion

D. no frictional force may be produced between the wheels and the axle

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4

A device used to measure heights above sea level is known as

A. altimeter

B. anemometer

C. dilatometer

D. potentiometer

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4

When a charged rod is brought near a collection of small pith balls, the balls

A. will jump rapidly up and down for a short time

B. will remain unaffected

C. Both (a) and (b) above

D. It will produce electric shock

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4

When a body is partly or wholly immersed in a liquid the apparent loss of weight is equal to the weight of the liquid displaced by the submerged portion. This is known as

A. Pascal's law

B. Bernoulli's law

C. Archimedes' law

D. Boyle's law

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4

An electric charge is measured in

A. coulomb

B. ampere

C. volt

D. watt

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4

In an electrical circuit, a fuse is connected

A. in the live wire

B. in the neutral wire

C. in the earth wire

D. anywhere

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4

A car parked in the sun with its windows closed gets terribly hot inside. This is due to

A. the heat emitted by the engine

B. the greenhouse effect

C. the good conducting power of the metal body

D. the double layered wind shield

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4

When we tighten the string of a sitar or tanpura its pitch

A. remains the same

B. increases

C. decreases

D. None of the above

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4

Which of the following apparatus is used in the electrolysis of water?

A. Voltmeter

B. Voltameter

C. Ammeter

D. Potentiometer

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4

Sound waves In 'air travel faster if

A. frequency is higher

B. wavelength is smaller

C. pitch is smaller

D. air is warmer

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4

The planet that has got a well-developed set of rings is

A. Venus

B. Saturn

C. Mercury

D. Earth

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4

When a body Is taken to the poles from the equator, Its weight becomes

A. greater

B. less

C. the same

D. None of these

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4

A light year means

A. a unit of time

B. a unit of length

C. a year of no consequence

D. illumination throughout the year

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4

The distance between two bodies is halved. Now the force of attraction between them will be

A. half

B. one fourth

C. four times

D. two times

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4

The escape velocity of a satellite projected from the surface of the earth is independent of

A. the mass of earth

B. the mass of the satellite

C. the radius of the earth

D. gravitation of the earth

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4

The red colour of the setting sun is due to

A. the least scattered red colour reaching the eye

B. the dispersion of sun light occurred in air molecule in atmosphere

C. the diffraction of sunrays in atmospheric layers

D. interference of all the rays coming from the sun

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4

Alpha particles are

A. electromagnetic radiations

B. helium nuclei

C. negatively charged particles

D. neutral particles

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4

SONAR (Sound Navigation Ranging) is

A. used by warships and military aircraft to locate enemy submarines

B. used by ships to determine the depth of water beneath them

C. a detective device that uses sound to locate under - water objects

D. All the above

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4

The unit of power in SI is

A. Joule

B. Newton

C. Joule/Sec

D. Erg/Sec

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4

Water kept in an earthen pot is less cool on rainy days than in summer because during the rainy days

A. the pores in the pot are closed

B. rain water stops oozing out from the pores

C. the water that oozes out does not evaporate quickly because of the large percentage of moisture in the air

D. surface of the pot becomes damp

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4

A lactometer la used to

A. find out the specific gravity of liquids

B. measure the volumes of liquids

C. test the purity of milk

D. determine the strength of acid in car batteries

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4

The filament lamp is an example for

A. fluorescence

B. incandescence

C. both (a) and (b)

D. None of these

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4

A capillary tube is partially dipped vertically in a vessel containing water. Due to capillarity water rises in the tube. The height of water rise in the tube can be increased by

A. decreasing the radius of the capillary tube

B. increasing the radius of the capillary tube

C. increasing the height of water in the vessel

D. None of these

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4

An astronomical unit of distance is

A. a kilometre

B. light year

C. the average distance from the earth to the sun

D. None of the above

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4

To get 5 images of a single object one should have two plane mirrors inclined at an angle of

A. 72°

B. 60°

C. 36°

D. 90°

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4

A solid ball of metal has a spherical cavity inside it. When the ball is heated the volume of the cavity will

A. increase

B. decrease

C. remain unaffected

D. have its shape changed

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4

The tiniest of the stars belong to the group known as

A. Giant stars

B. White Dwarf stars

C. Neutron stars

D. Super-giant stars

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4

The weight of a body is

A. maximum at the equator

B. minimum at the equator

C. minimum at the poles

D. the same everywhere

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4

The asteroids belt lies between the orbits of

A. Earth and Mars

B. Venus and Earth

C. Mars and Jupiter

D. Moon and Mars