2022
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Sodium
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Iron
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Nitrogen
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Calcium
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Detailed explanation-1: -The X-ray spectrometer CLASS on the Chandrayaan-2 Orbiter has mapped the abundance of sodium on the Moon for the first time.
Detailed explanation-2: -Chandrayaan-2 Orbiter’s X-ray spectrometer ‘CLASS’ has mapped an abundance of sodium on the moon for the first time, as per the Indian Space Research Organisation (ISRO).
Detailed explanation-3: -Chandrayaan-1 X-ray Fluorescence Spectrometer (C1XS) detected sodium from its characteristic line in X-rays. The X-ray spectrometer ‘CLASS’ on the Chandrayaan-2 Orbiter has mapped an abundance of sodium on the moon for the first time, according to the Indian Space Research Organisation (ISRO).
Detailed explanation-4: -The major discovery of the Chandrayaan-1 mission is the detection of water (H2O) and hydroxyl (OH) on the lunar surface. The data also revealed their enhanced abundance towards the polar region.
Detailed explanation-5: -Scientists used the CLASS instrument (Chandrayaan-2 large area soft X-ray spectrometer) carried by the second Indian Moon mission, Chandrayaan-2. This is the first effort to provide a global-scale measurement of sodium on the lunar surface using X-ray fluorescent spectra.