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Current Affairs January 2024

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How is it that Pluto is not always the farthest planet of the solar system?

A. Each planet becomes the farthest planet in its turn. Now it is the turn of Piuto

B. The Sun is now in the zodiac in which it is nearest to outer planets

C. The eccentricity of Piuto's orbit being substantial, this orbit cuts the orbit of Neptune

D. Piuto belongs to other solar system

Correct Answer :

C. The eccentricity of Piuto's orbit being substantial, this orbit cuts the orbit of Neptune


Related Questions

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Which part of the eye photographic camera?

A. Lens

B. Iris

C. Retina

D. Eyelid

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X-rays are

A. deflected by electric field

B. deflected by magnetic field

C. slightly deflected by electric field and magnetic field

D. not deflected by electric and magnetic fields

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The numerical reading of the Fahrenheit thermometer of a given temperature

A. is proportional to that of the Celsius thermometer

B. is always greater than that of the Celsius thermometer

C. is always less than that of the Celsius thermometer

D. may be greater than or less than or equal to that of the Celsius thermometer

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Frictional force acts in

A. the same direction as the motion

B. the opposite direction of the motion

C. all the directions

D. upward direction

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One can be recognised by his voice alone due to the factor of

A. quality

B. amplitude

C. pitch

D. loudness

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The Cact that the compass needle does not point true north was observed first by

A. Sir Isaac Newton

B. Columbus

C. Archimedes

D. Thomas Alva Edison

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When ice melts, Its volume

A. decreases

B. increases

C. remains the same until all the ice has melted and then increases

D. remains the same

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Enriched uranium means

A. Uranium that is very pure

B. Uranium in which the concentration of the isotope U-238 is more than in the naturally occuring uranium

C. Uranium in which the concentration of the isotope U-235 is more than in the naturally occuring uranium

D. None of the above

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When an electric bulb breaks, there la an explosive sound. That is due to

A. the chemical reaction between the gases inside the bulb

B. the compressed gases inside rushing out suddenly

C. the air outside rushing in to fill the vacuum inside the bulb

D. None of the above

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In a microphone

A. sound energy is converted into electrical energy

B. electrical energy is converted into sound energy

C. sound energy is converted into mechanical energy

D. mechanical energy is converted into sound energy

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Diamond shines because of its

A. purity

B. hardness

C. high density

D. high refractive index and low critical angle

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Hydrophone is an instrument used

A. for measuring relative density of liquids

B. by ships to pass on messages

C. for determining the depth of ocean bottoms etc.

D. by deaf people to aid hearing

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Bats flying in the dark avoid obstacles because

A. they can see very dearly only in darkness

B. they produce ultrasonic waves which guide them

C. their eyes are sensitive to darkness

D. their eye holes expand in darkness

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Besides protons, the nucleus of an atom contains

A. electrons

B. neutrons

C. neutrons and electrons

D. electrons, neutrons and other particles

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Some persons are not able to see distant objects clearly because the image of the object is focused in front of the retina. This defect is known as

A. short sight

B. long sight

C. astigmatism

D. presbyopia

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When a particle in motion is acted upon by a force in a direction perpendicular to the direction of motion, the path followed by the particle will be

A. a straight line

B. an ellipse

C. a circle

D. a parabola

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Cosmic rays contain

A. protons and electrons

B. alpha particles

C. gamma rays

D. All the above

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Before the invention of geostationary satellites, television stations could not transmit their programmes to far off places because

A. these signals are electromagnetic in nature

B. these are not electromagnetic in nature

C. their wavelength is very large

D. they are not reflected by the ionosphere but pass through it

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While crossing a suspension bridge, the soldiers are ordered to break steps because

A. the marching in steps will involve a big strain on them

B. the resonant vibrations caused by their marching can damage the bridge increasing the amplitude to dangerous proportions

C. the marching may obstruct other traffic

D. rumblings of their marching may disturb the surroundings

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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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The radiator in a car serves to

A. cool the engine

B. heat up the engine

C. start the car

D. moderate the speed

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If a body is taken from the earth to the moon

A. both its mass and weight will be different

B. its mass will be different but the weight will remain the same

C. its mass and weight will both remain unchanged

D. its mass will remain the same but weight will be different

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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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Solar radiation is preferred to other sources of energy because

A. it is practically inexhaustible

B. it is the cheapest form of energy

C. it does not cause pollution

D. All of the above

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In a refrigerator, the refrigerant is

A. Nitrogen

B. Oxygen

C. Chlorine

D. Freon

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In the ramous equation of Einstein E = mc2 , 'c' denotes.

A. velocity of sound

B. velocity of light

C. a constant factor

D. wavelength of light

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The principle of equivalence of mass and energy was established by

A. Dalton

B. Rutherford

C. Einstein

D. Planck

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It is more difficult to walk on ice than on a concrete road because

A. there is very little friction between the ice and feet pressing it

B. ice is soft when compared to concrete

C. there is more friction between the ice and feet

D. None of the above

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The asteroids belt lies between the orbits of

A. Earth and Mars

B. Venus and Earth

C. Mars and Jupiter

D. Moon and Mars

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A workman was working on a rail track. A young boy at a distance holds his ear close to the railway track. The boy was able to hear the sound of each blow or the workman twice. It is because

A. speed of sound is greater in steel than in air

B. speed of sound is greater in air than in steel

C. part of sound waves is reflected between rail tracks

D. the boy's ears are at a different distance from the source