Which of the following statements regarding the Polar Satellite Launch Vehicle (PSLV) and hyperspectral imaging is/are correct?
1. The PSLV is a four-stage rocket that utilizes only liquid propellants across all its stages to achieve orbital insertion.
2. Hyperspectral imaging satellites capture data across a wide, continuous spectrum of light, allowing for detailed material identification on the Earth's surface.

Question

Accepted Answer

2 only — Statement 1 is incorrect because the PSLV uses alternating solid and liquid stages (PS1 and PS3 are solid; PS2 and PS4 are liquid). Statement 2 is correct as hyperspectral imaging gathers data from hundreds of narrow bands across the electromagnetic spectrum to identify specific materials and monitor environmental changes.

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