The spectral signature of plants is different from that of water bodie

1.	The spectral signature of plants is different from that of water bodies. Analyse this statement to answer the questions.i. What is spectral signature? ii. Which instrument recognizes spectral signature? iii. Each object reflects electromagnetic radiation differently. Why?
Answer» i. The amount of energy reflected by each object is its spectral signature. ii. Scanners mounted on artificial satellites recognize different objects on the basis of their spectral signature. iii. Each object on the earth’s surface reflects electromagnetic radiation on the basis of their features. Each object reflects electromagnetic radiation differently. This is because of the difference in the physical property of each object.

The spectral signature of plants is different from that of water bodies. Analyse this statement to answer the questions.i. What is spectral signature? ii. Which instrument recognizes spectral signature? iii. Each object reflects electromagnetic radiation differently. Why?

Answer»

i. The amount of energy reflected by each object is its spectral signature.

ii. Scanners mounted on artificial satellites recognize different objects on the basis of their spectral signature.

iii. Each object on the earth’s surface reflects electromagnetic radiation on the basis of their features. Each object reflects electromagnetic radiation differently. This is because of the difference in the physical property of each object.

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The spectral signature of plants is different from that of water bodies. Analyse this statement to answer the questions.i. What is spectral signature? ii. Which instrument recognizes spectral signature? iii. Each object reflects electromagnetic radiation differently. Why?

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