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If a body weight 12N on the surface of the earth, how much will it weigh on the surface of the moon where acceleration due to gravity is only one-sixth of that on earth's surface?

A. 12N

B. 2N

C. 10N

D. 6N

Correct Answer :

B. 2N


Related Questions

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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

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A bullet is fired at a certain angle with the horizontal. Its path will be

A. elliptical

B. a straight line

C. a parabola

D. a vertical line

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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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Sound waves in air are

A. transverse

B. longitudinal

C. transverse and longitudinal

D. neither transverse nor longitudinal

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

A. Venus

B. Saturn

C. Mercury

D. Earth

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In the electrical circuit of a house the fuse acts as

A. a thermopile

B. a load

C. a step down device

D. a safety device

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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

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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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4

The spectrum of white light can be studied by

A. a microscope

B. a telescope

C. a stereoscope

D. a spectroscope

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A temperature below absolute zero for an ideal gas

A. cannot be attained experimentally

B. can be attained

C. is impossible

D. Does not exist at all

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The Space Application Centre for training in Satellite Communication Technology is located at

A. Bangalore

B. Mumbai

C. Ahmedabad

D. New Delhi

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Photoelectric cell is a device which converts

A. light energy into electrical energy

B. electrical energy into light energy

C. magnetic energy into electrical energy

D. electrical energy into mechanical energy

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A bucket of water is hung from a spring balance. A piece of iron is suspended in the water without touching the sides or touching the bottom of the bucket. The reading of the spring balance

A. will increase

B. will decrease

C. does not change

D. varies with the increase of depth of the immersion of the iron piece

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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

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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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When light travels from one medium to another there is a change in its

A. velocity

B. wavelength

C. frequency

D. Both (a) and (b) above

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Red Light is used as a dancer signal because

A. it is pleasing to the eye

B. it has a traditional colour

C. it is easily distinguishable

D. it is most sensitive to the human eye

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Out of the following which element has the longest half-life period?

A. Radium

B. Radon

C. Uranium-238

D. Plutonium

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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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4

Rays from the headlight of a motor car are rendered parallel by suitably using

A. a convex mirror behind it

B. a concave lens behind it

C. a concave mirror in front of it

D. a concave mirror behind it

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In an oil lamp, holes are provided below the chimney so that

A. necessary oxygen for burning of oil may be provided

B. the convection current of air may be maintained to keep the lamp burning

C. the brightness of the lamp may be increased

D. All the above

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The Solar System lies near the edge of a galaxy known as

A. The Milky Way

B. Radio Galaxy

C. Andromeda Nebula

D. Magellanic Clouds

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At temperature near OK, (zero kelvin) metals such as lead and tin become

A. insulators

B. semiconductors

C. superconductors

D. condenser

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A hydraulic brake in an automobile uses

A. a fluid to transmit the braking force

B. the force applied by the driver

C. hydrogen gas and not any liquid

D. a vacuum brake

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Which of the following rays has the highest penetrative power?

A. �± -rays

B. �² -rays

C. �³ -rays

D. X-rays

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A bolometer is used to measure

A. the quantity of heat energy in a body

B. thermal radiations quantitatively

C. high temperature

D. the intensity of sound

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The largest planet in the solar system is

A. Neptune

B. Uranus

C. Jupiter

D. Saturn

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The rocket engine is motivated by jet propulsion which uses the famous

A. Kepler's Laws

B. Newtonian Third Law of Motion

C. Bernoulli's Principle

D. Law of Relativity

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Nuclear fission process means

A. absorption of a neutron by a nucleus

B. breakup of the nucleus of a heavy atom into two nearly equal halves emitting two or three neutrons and releasing large amounts of nuclear energy in the process

C. the scattering of neutrons

D. formation of heavier nucleus