Pulsars are : (1) stars moving towards the Earth (2) stars moving away from Earth (3) rapidly spinning stars (4) high temperature stars

1 Answer

Answer :

(3) rapidly spinning stars Explanation: Pulsars are celestial objects, thought to be rapidly spinning stars, that emits regular pulses of radiowaves and other electromagnetic radiation at the rate of upto one thousand pulses per second.

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Description : Pulsars are – (1) stars moving towards the Earth (2) stars moving away from Earth (3) rapidly spinning stars (4) high temperature stars

Last Answer : (3) rapidly spinning stars Explanation: The word "pulsar" is a contraction of "pulsating star. A pulsar is formed when a massive star collapses exhausts its supply of fuel. It blasts out ... an object composed primarily of neutrons packed so tightly that they no longer exist as normal matter.

Description : Pulsars are : (1) stars moving towards the Earth (2) stars moving away from Earth (3) rapidly spinning stars (4) high temperature stars

Last Answer : (3) rapidly spinning stars Explanation: Pulsars are celestial objects, thought to be rapidly spinning stars, that emits regular pulses of radio waves and other electromagnetic radiation at the rate of upto one thousand pulses per second.

Description : Pulsars are (1) stars moving towards the Earth (2) stars moving away from Earth (3) rapidly spinning stars (4) high temperature stars 

Last Answer :  rapidly spinning stars

Description : A pulsar is a rapidly spinning neutron star which emits: A. A blinding light when it aligns with the planets B. Radio waves detectable from Earth (Answer) C. A gravitational pull which attracts high energy dust particles D. Enough energy to power itself indefinitely

Last Answer : B. Radio waves detectable from Earth (Answer)

Description : Stars twinkle but planets do not twinkle because - (1) they emit light of a constant intensity (2) their distance from the earth does not change with time (3) they are very far away ... and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable

Last Answer : (4) they are nearer to the earth and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable Explanation: Eris is the most massive and second-largest ... orbiting the Sun, and the largest known body in the Solar System not visited by a spacecraft.

Description : Can any rapidly spinning object be considered a gyroscope?

Last Answer : Yes.

Description : The temperature increases rapidly above – (1) Ionosphere (2) Exosphere (3) Stratosphere (4) Troposphere

Last Answer : (2) Exosphere Explanation: Above Troposphere, temperature increases rapidly with height in the Stratosphere layer as it houses the ozone layer which absorbs ultraviolet (UV) rays from the sun. Again ... Exosphere which is the uppermost layer of the atmosphere reaches up to more than 4500° Celsius.

Description : Would you gain momentum falling towards a large asteroid if the large asteroid was moving away?

Last Answer : answer:Were the boosters already active before you jumped out, or did the asteroid only start moving when you jumped? Does this atmosphere have an atmosphere that would push you downwards? If ... fall anyway, until you reach terminal velocity; I assume the question is whether you accelerate faster.

Description : If P is moving away from a point and Q is moving towards a point then,

Last Answer : If P is moving away from a point and Q is moving towards a point then, can their resultant be found using parallelogram law of vector addition?

Description : A spinning neutron star is known as – (1) White dwarf (2) Black hole (3) Pulsar (4) Quasar

Last Answer : (3) Pulsar Explanation: Pulsars are spinning neutron stars that have jets of particles moving almost at the speed of light streaming out above their magnetic poles. These jets produce very powerful beams of light.

Description : Wet-bulb temperature is: a. The temperature indicated by a thermometer whose bulb covered by a water-wetted wick and exposed to a rapidly moving stream of air b. The same as the dry-bulb ... point temperature d. Always less than the dry-bulb temperature e. Not required to find the relative humidity

Last Answer : Answer: A

Description : Which of the following are used for accurately measuring very small time intervals? (1) Pulsars (2) Quartz clocks (3) Atomic clocks (4) White dwarfs

Last Answer : (3) Atomic clocks Explanation: An atomic clock is a clock device that uses an electronic transition frequency in the microwave, optical, or ultraviolet region of the electromagnetic spectrum of ... the wave frequency of television broadcasts, and in global navigation satellite systems such as GPS.

Description : There is no connection of supernova explosion with------? A. Cosmic rays B. Pulsars C. The formation of heavy elements D. Quasars (Answer)

Last Answer : D. Quasars (Answer)

Description : Antares is of the largest known ------? A. Quasars Star B. Pulsars Star C. White Dwarfs Star D. Red Super-giants Star (Answer)

Last Answer : D. Red Super-giants Star (Answer)

Description : Which of the following are used for accurately measuring very small time intervals ? (1) Pulsars (2) Quartz clocks (3) Atomic clocks (4) White dwarfs

Last Answer : Atomic clocks

Description : Stars appear to move from east to west because the (a) Whole universe is moving from east to west (b) Earth is revolving around the sun (c) Earth is rotating from east to west (d) Earth is rotating from west to east

Last Answer : Ans:(d)

Description : Which of the following will increase the ANGULAR MOMENTUM of a person spinning on a rotatable frictionless bar chair? w) moving the arms closer to the body x) moving the arms farther from the body y) ... from the body and the other arm closer to the body with spastic repetition z) none of these

Last Answer : ANSWER: Z -- NONE OF THESE

Description : Why are winters more severe in Southern Hemisphere than in Northern Hemisphere? (1) Earth is titled towards the sun in the Northern Hemisphere (2) Northern Hemisphere receives more sunlight (3) Because of more iceberg activity in Southern Hemisphere (4) Southern Hemisphere is less inhabited

Last Answer : (1) Earth is titled towards the sun in the Northern Hemisphere Explanation: The winter in the Southern Hemisphere occurs when the Northern hemisphere is tilted more toward the Sun. From the perspective of an ... the Earth, the winter Sun has a lower maximum altitude in the sky than the summer Sun.

Description : When testing a capacitor with an analog type ohmmeter, a good capacitor will be indicated when _____________. A. there is no meter deflection B. the meter deflects to a low resistance value and ... deflects to a low resistance value and increases rapidly to a higher value, but stays fairly low

Last Answer : Answer: C

Description : Stars twinkle but planets do not twinkle because (1) they emit light of a constant intensity (2) their distance from the earth does not change with time (3) they are very far away from ... and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable 

Last Answer : they are nearer to the earth and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable

Description : Which layer produce and comnducts electricity due to its high iron content and the earth spinning?

Last Answer : The Earth's outer core produces electricity caused by abundance of iron. The Earth rotates and as it does that the iron generates high electric currents that then produce electricity. That also can generate magnetic fields.

Description : Cherapunji receives more rainfall than Shillong because: (a) the former is nearer to the sea (b) the air of different densities and temperature tends to converge towards Cherapunjl from ... Cherapunji is located on the windward side (d) convective precipitation brings more rain at Cherapunji

Last Answer : Ans: (b)

Description : The rapidly growing mass of phytoplankton coveting the surface water of a lake or pond is known as – (1) Eutrophication (2) Water bloom (3) Water pollution (4) Water hyacinth

Last Answer : (1) Eutrophication Explanation: Eutrophication is the ecosystem response to the addition of artificial or natural substances, such as nitrates and phosphates, through fertilizers or sewage, to an aquatic ... increase of phytoplankton in a water body as a response to increased levels of nutrients.

Description : Why does a passenger jumping out of a rapidly moving bus fall forward with his face downwards -Science

Last Answer : When the passenger jumps out of a fast-moving bus/train, his feet will come to rest on touching the ground, whereas the upper part of his body continues to move forward, due to the inertia of motion. As a result, if he does not run forward he will fall with his face in downwards direction.

Description : What term describe an apparent change in frequency of sound waves of rapidly moving?

Last Answer : Doppler Shift. It occurs in electromagnetic radiation too,though is really only significant at extremely high speeds such asthe recession-rate of galaxies.

Description : In general, valves in the circulatory system: a) permit blood to circulate rapidly b) prevent blood from moving too rapidly c) prevent blood from flowing in the wrong direction d) stop the circulation whenever necessary

Last Answer : ANSWER: C -- PREVENT BLOOD FROM FLOWING IN THE WRONG DIRECTION

Description : If the earth stopped spinning, would we all be crushed by gravity?

Last Answer : The force that throws you outwards when you spin isn't actually outwards. It is perpendicular to the force of gravity. So it is not counteracting gravity at all. If gravity were suddenly turned off you ... that you are going straight up. But in fact the earth it is the going down relative to you.

Description : What is the Spinning movement. The earth made called?

Last Answer : The spinning of the earth is called rotation. It takes the earth abut 24 hours, or one day, to make one complete rotation. At the same time, the earth is moving around the sun. This is called a revolution.

Description : What would happen if the Earth stopped spinning?

Last Answer : If the core of the Earth had stopped spinning, then we would all die. Let me explain how we would all be killed. First, minor things will happen, EMP's would occur, frying electronics worldwide. After ... us. As that we do not have the technology for getting everyone off the Earth and to a more

Description : Why don't we realize that the earth is spinning ?

Last Answer : There are many reasons why we do not realize that the earth is spinning. For example, due to being located on the earth, people , animals , atmosphere, etc. are moving together. The earth is ... or equal object in front of the earth by which we can understand the rotational speed of the earth.

Description : What do you call it when earth is spinning on its axis?

Last Answer : You would say that the Earth is revolving.

Description : if earth was not spinning there would be no ____.?

Last Answer : Diurnal cycle

Description : Which of the following is an example of simple harmonic motion? (1) Earth spinning on its axis (2) Simple pendulum motion (3) Bali bouncing on floor (4) Motion of a ceiling fan

Last Answer : (2) Simple pendulum motion Explanation: When a body moves about a mean position in such a way that the acceleration is proportional to the displacement and is always directed towards the mean ... to execute a simple harmonic motion. The motion of a simple pendulum falls under this category.

Description : Which of the following is an example of simple harmonic motion? (1) Earth spinning on its axis (2) Simple pendulum motion (3) Ball bouncing on floor (4) Motion of a ceiling fan

Last Answer : Simple pendulum motion

Description : Sea water is saltier than rain water because – (1) rivers wash away salts from earth and pour them into the sea (2) sea beds have salt producing mines (3) sea animals are salt producing (4) the air around the sea is saltish

Last Answer : (1) rivers wash away salts from earth and pour them into the Explanation: Sea water is saltier than rain water because rivers wash away salts from earth and pour them into the sea.

Description : Two major factors are changing the face of today's communications. One of these factors is the fact that: A. Costs of promotion are rising. B. Mass markets are fragmented and ... Global communications are not growing rapidly enough. D. Marcom managers have achieved more power and control.

Last Answer : B. Mass markets are fragmented and marketers are shifting away from mass marketing.

Description : The large collection of Stars, dust and gas held together by gravitational attraction between components is known as - (1) Cluster (2) Atmosphere (3) Galaxy (4) Sun Family

Last Answer : (3) Galaxy Explanation: The term galaxy refers to a large collection of stars, dust, and gas clouds which are held together by gravitational attraction.

Description : The Doppler Effect predicts that the spectrum of light from a visible body moving AWAY from the Earth will experience a shift in frequency when viewed from Earth. This particular shift is known as the: w) Blue shift x) Neutral shift y) Red shift z) Dirac shift

Last Answer : ANSWER: Y -- RED SHIFT

Description : Melt spinning of polymers involves the forcing of polymer melt through spinnerates (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter ... the __________ fibres. (A) Acrylic (B) Polyester (C) Nylon 6:6 (D) Polypropylene

Last Answer : (A) Acrylic

Description : A train goes past a railway station at a high speed. A young boy standing on the edge of the platform is likely to _____? A. Fall away from the train B. Remain unaffected C. Fall towards the train D. Fall away from or towards the train depending upon the speed

Last Answer : ANSWER: C

Description : A train goes past a railway station at a high speed. A young boy standing on the edge of the platform is likely to -----? A. Remain unaffected B. Fall away from the train C. Fall towards the train (Answer) D. Fall away from or towards the train depending upon the speed

Last Answer : C. Fall towards the train (Answer)

Description : Consider the following four conditions (1 - 4) and select a correct pair of them as adaptations to environment in desert lizards. Conditions: 1. Burrowing in soil to escape high temperature. 2. Losing heat rapidly from the body during ... to thick fatty dermis. (a) 3, 4 (b) 1, 3 (c) 2, 4 (d) 1, 2

Last Answer : (b) 1, 3

Description : Which one of the following pairs is not correct? (a) New Moore Island - India (b) Hurricane - China Sea (c) Doldrums - The equator (d) Trade winds - Winds which blow towards the equator

Last Answer : Ans: (b)

Description : The Farakka Project la mainly aimed towards (a) irrigating more land in West Bengal (b) utilizing maximum of Ganga water (c) preserving the port of Kolkata (d) production of electricity

Last Answer : Ans: (c)

Description : The Koal Project is aimed towards (a) irrigation (b) drainage and power generation (c) power generation and load control (d) irrigation, flood control and power generation

Last Answer : Ans: (d)

Description : How do the Central Asian highlands affect the Indian climate? (a) The low pressure in these areas intensifies the cold during the winter (b) The atmospheric pressure in this region has an effect on ... (d) The atmospheric pressure in this region has an impact on the onset of monsoon in India

Last Answer : Ans: (d)

Description : From north towards South, which one of the following is the correct sequence of the given rivers in India? [IAS 2006] (a) Shyok - Spiti - Zaskar - Sutlej (b) Shyok - Zaskar - Spiti - Sutlej (c) Zaskar - Shyok - Sutlej - Spiti (d) Zaskar - Sutlej - Shyok – Spiti

Last Answer : Ans: (c)

Description : Which one of the following is the correct sequence of the given hills starting from the north and going towards the south? [IAS 2005] (a) Nallamalai Hills - Nilgiri Hills - Javadi Hilis - ... - Nilgiri Hills - Anaimalai Hills (d) Anaimalai Hills - Nilgiri Hills - Javadi Hills - Nallamalai Hills

Last Answer : Ans: (c)

Description : Which of the following is not true with regard to the coastal plains of India ? (a) The west coast has a narrow alluvial margin interspersed by hilly terrain (b) The eastern coast has a ... little indentation except towards the south (d) The west and east coasts, have the same alluvial features

Last Answer : Ans: (d)