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4

The temperature of a large bucket-full of hot water (a few degrees below boiling point) is lower than a beaker full of boiling water. But

A. the hot water contains a much larger quantity of internal energy than the boiling water

B. the boiling water contains more quantity of internal energy than the warm water

C. both of them have got the same amount of internal energy.

D. nothing can be said definitely with the data given

Correct Answer :

A. the hot water contains a much larger quantity of internal energy than the boiling water


Related Questions

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4

The motion .of the pendulum of a wall clock is an example of

A. linear motion

B. vibratory motion

C. rotational motion

D. None of the above

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4

On the Kelvin scale, the melting point of ice is

A. 0 K

B. 273 K

C. 373 K

D. 100 K

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4

Among the following the most suitable material for the core of an electro-magnet is

A. steel

B. wood

C. soft iron

D. copper

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4

The acoustical quality of a room depends on

A. the size and shape of the room

B. the ability of the ceiling, walls and floor to exclude unwanted sound

C. the use of furnishings made of sound absorbing materials

D. All the above

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4

The stem of a vibrating tuning fork is pressed against a sound box. Then

A. the loudness of the sound increases

B. the loudness remains the same

C. the loudness decreases

D. the sound suddenly stops

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4

The plants in a greenhouse are enclosed in a glass enclosure because

A. glass allows the heat radiations of shorter wavelengths from the sun to pass through

B. the plants absorb them - these shorter wavelengths - and reradiate them in the form of longer wavelengths

C. the longer wavelengths cannot penetrate through the glass walls

D. All the above

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4

On applying a constant force to a mass, It moves with a uniform

A. velocity

B. momentum

C. acceleration

D. angular velocity

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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

It is difficult to bon potatoes at the top or a mountain because

A. the water available is hard

B. it is colder than at sea level

C. the potatoes become hard

D. the boiling point of water is lower at that height on account of low atmospheric pressure

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4

When the earth reaches its perihelion

A. it is nearest to the moon

B. it is nearest to the sun

C. it is nearest to Pluto

D. it is farthest from the sun

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4

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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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

A proton is

A. a quantum of light energy

B. a quantum of matter

C. a positively charged atomic particle

D. another name for positron

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4

The largest reserve of radioactive element which can be used in a nuclear reactor has been found in India, The name of the element is

A. Thorium

B. Uranium

C. Plutonium

D. Radium

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4

Alternating Current (AC) is more advantageous than direct current because

A. it can be transmitted easily and efficiently

B. Alternating Current (AC) loses the least amount of energy when transmitted at high voltages

C. Alternating Current (AC) voltage can be easily increased or decreased

D. all 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

The Indian Space Research Organisation (ISRO) is located at

A. Thumba

B. Bangalore

C. Ahmedabad

D. New Delhi

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4

An ammeter has

A. a high resistance

B. a very low resistance

C. no resistance at all

D. resistance of 400 � w

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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 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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4

The device that is used to measure the electromotive force of a cell is

A. an ammeter

B. a rheostat

C. a voltmeter

D. a voltameter

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4

The planet that spins Caster than any other planet is

A. Saturn

B. Jupiter

C. Earth

D. Mercury

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4

When are temperature resistance

A. increases

B. decreases

C. remains the same

D. first increases then decreases

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4

The velocity of sound in a medium is

A. directly proportional to its pressure

B. inversely proportional to the square root of its pressure

C. directly proportional to the square root of its pressure

D. independent of its pressure

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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

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

At what temperature do the Fahrenheit and Celsius scales give the same reading?

A. 212°

B. 32°

C. -40°

D.

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4

During thunder storm you are travelling in a car. To protect yourself from the lightning you will have to

A. remain in the car

B. get out of the car and lie flat in the ground

C. abandon the car and take shelter under a nearby tree

D. touch the nearest electric pole

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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

The scientist who first sent electromagnetic waves to distant places was

A. James Clerk Maxwell

B. Heinrich Hertz

C. Thomas Alva Edison

D. Baird