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What is the SI unit of Energy ?

Joule
KG
Meter
Kelvin

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It is named on a scientist 'James Prescott Joule'. Joule is also the unit of work as energy is defined via work.

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How many poles does a magnet have ?

1
2
3
4

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Carbon dating is used for what ?

To produce a solution with carbon as solute
To estimate the age of organic materials
To change the carbon in other organic material
To produce conductors

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In Scientific term ,stored energy is known as what ?

Radiant Energy
Potential Energy
Kinetic Energy
Chemical Energy

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Which elements are used to make salt ?

Hydrogen and Chlorine
Hydrogen and Methanes
Sodium and Chlorine
Sodium and Hydrogen

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Salt is made up of Sodium (Na) and Chlorine (Cl).Its chemical formula is NaCl.

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In the Chemical Composition of the Crust, which compound has a share of more than 60% ?

Magnesia
Lime
Alumina
Silica

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What is the name given to the green pigment in plants ?

Chlorophyll
Starch
Heme
Tendrils

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Chlorophyll is a green pigment found in most plants, algae, and cyanobacteria. Chlorophyll absorbs light most strongly in the blue and red but poorly in the green portions of the electromagnetic spectrum, hence the green colour of chlorophyll-containing tissues such as plant leaves.

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Which only metal remains liquid at standard conditions for temperature and pressure ?

Water
Mercury
Glucose
Silica

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Mercury(Hg) is also known as quicksilver.It is one of six chemical elements that are liquid at or near room temperature and pressure , the others being caesium, francium, gallium, bromine, and rubidium.

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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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In which year , India launched it's first satellite (Aryabhata) ?

1974
1975
1976
1977

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It was launched by the Soviet Union on 19 April 1975 from Kapustin Yar using a Cosmos-3M launch vehicle. Aryabhata was built by the Indian Space Research Organization (ISRO).

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