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Current Affairs January 2024

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4

The line on earth's surface passing through the places having zero dip is called the magnetic equator. This passes through

A. Thumba

B. Delhi

C. Mumbai

D. Sriharikota

Correct Answer :

A. Thumba


Related Questions

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The following are the atmospheric zones above the surface of the earth:
A) Troposphere
B) Ionosphere
C) Stratosphere
D) Exosphere
Select the correct sequence from the earth's surface on the basis of the codes given below:

A. ACBD

B. ABCD

C. CABD

D. BACD

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4

The filament used in the electric lamp is made of

A. nichrome

B. tungsten

C. copper

D. aluminium

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4

The air inside an electric, bulb is removed to prevent

A. oxidation of the tungsten filament

B. bursting of the bulb

C. loss of light due to absorption

D. keeping the weight of the bulb less

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4

The leader of the team who succeeded in constructing the first nuclear reactor (an atomic pile) in the world was

A. Albert Einstein

B. Enrico Fermi

C. HJ Bhabha

D. Sir Isaac Newton

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4

Which of the following can produce electricity?

A. resistor

B. thermocouple

C. light bulb

D. neon tube

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4

An electric charge is measured in

A. coulomb

B. ampere

C. volt

D. watt

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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

If you want to open a door with les difficulty you push it

A. at the middle

B. at a point away from the hinge (near the rim)

C. near the hinge

D. None of the above

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4

The electron has a mass equal to

A. 1.9 x 10-13 kg

B. 9.1 x 10-31 kg

C. 1 x 10-15 kg

D. 1.6 x 10-19 kg

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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

It is easier to climb down a staircase than climb up because in climbing down

A. work is done against gravity

B. the steepness of the staircase isn't felt

C. gravity assists

D. there is no friction between the legs and steps

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4

Warm air will hold more water vapour than cold air because

A. it is lighter

B. it has more water vapour in it

C. its molecules are close together

D. its molecules are far apart

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4

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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4

Meteors

A. look like falling stars

B. are really pieces of rock or metal

C. burn up as they shoot through the air

D. All the above

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4

The electrical domestic tube light gives white fiourescent light because of

A. collision between molecules of filled gas under electric current

B. heavy current

C. vacuum inside the tube

D. falling of ultra violet rays on the white inner coating of the tube

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4

Isotones are species of atoms containing

A. same number of protons but different number of neutrons

B. same number of neutrons but different number of protons

C. the same total number of protons and neutrons

D. same number of protons and different number of electrons

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4

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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The number of electrons in the outer orbits of a nucleus gives

A. the mass number

B. atomic number

C. atomic weight

D. absolute number

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4

We see the flash of lightning before hearing the thunder because

A. light travels very much faster than sound

B. sound travels faster than light

C. lightning occurs nearer than thunder

D. both travel at the same speed

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4

No current will flow between two charged bodies if they have the same

A. resistance

B. charge

C. potential

D. charge/potential ratio

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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

Why is it cool near an open pond on a hot summer day?

A. Evaporation at the surface causes cooling

B. The heat obsorbed at the surface is passed on to the bottom

C. Because of impurity in the water

D. Because of convection currents set up inside water

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4

X-rays were discovered by

A. Wilhelm Roentgen

B. WO Coolidge

C. Henry Cavendish

D. William Watson

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4

A solar eclipse occurs when the earth, the sun and the moon are in a straight line, and

A. when the moon passes between the sun and the earth

B. when the sun comes between the earth and the moon

C. when the earth comes between the sun and the moon

D. on a full moon day

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4

Increase in pressure

A. increases the melting point of ice

B. decreases the melting point of ice

C. has no effect on the melting point of ice

D. increases the volume of the ice

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4

The planet that is known as earth's twin is

A. Mercury

B. Venus

C. Moon

D. Mars

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4

The aneroid barometer uses

A. mercury

B. distilled water

C. alcohol

D. does not use any liquid

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4

The colour of a star is an indication of its

A. distance from the earth

B. age

C. temperature

D. size

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Raindrops assume a spherical shape because or

A. adhesion

B. surface tension

C. gravitational force

D. atmospheric pressure from all sides

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A piece of ice is Boating In water kept in a beaker. When all the ice melts the level of water will

A. first rise and then fall

B. fall

C. remain the same

D. rise