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What is the Biggest Planet in the Solar System ?

Jupiter
Mars
Earth
Pluto

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It is 2.5 times all the mass of all the other planets put together. It is composed largely of hydrogen and helium. Jupiter has sixty-three known satellites. It's diameter is 142,984 km at its equator. You could line up 11 Earths side by side, and they wouldn't quite equal the width of Jupiter.

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What is the primary function of Kidney.

Blood supply
Production of urine
Breathing
None of the above

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They are part of the urinary system.In producing urine, the kidneys excrete wastes such as urea and ammonium.They are also responsible for the reabsorption of glucose and amino acids.

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Who invented the mobile phone ?

Marconi
Wright Brothers
Thomas Savery
Dr. Martin Cooper

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In April 1973, Dr Martin Cooper, former general manager for the systems division at Motorola, invented the mobile phone prototype and made the first call to Joel Engel, his rival, head of research at Bell Labs.

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What is the first element in the modern periodic table ?

Helium
Lithium
Hydrogen
Oxygen

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Elements in periodic table are placed according to there atomic number. Elements having lesser atomic no. are earlier in table. Hyderogen is having atomic no. 1, thus it is first in table.

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Who discover the concept of relationship between mass and energy ?

Einstein
Planck
Dalton
Rutherford

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Which planet is known as hottest planet in our solar system ?

Earth
Venus
Saturn
Jupitar

Venus.jpg

It is the second-closest planet to the Sun.It is Classified as a terrestrial planet and sometimes called Earth's 'sister planet'. Venus has the densest atmosphere of all the terrestrial planets. Mercury, Venus, Earth and Mars are known as terrestrial planets

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Which layer is the second major layer of Earth's atmosphere ?

Mesosphere
Troposphere
Stratosphere
Exosphere

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It lies above the troposphere and below the mesosphere.The stratosphere is situated between about 8 km (5 miles) and 50 km (31 miles) altitude above the surface

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What is the SI unit of frequency ?

Hertz
Juile
Watt
Ampere

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It is defined as the number of complete cycles per second. 1 Hz is equal to one cycle per second.

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The distance (measured in the direction of propagation) between two points in the same phase in consecutive cycles of a wave is called as ...

Frequency
Wavelength
Refraction
Amplitude

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Wavelength is designated by the Greek letter lambda. It is inversely proportional to frequency which means waves with higher frequencies have shorter wavelengths, and lower frequencies have longer wavelengths.

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Entomology is the scientific study of

Insects
Plants
Animals
Blood

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Entomology a branch of arthropodology.

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