Question

The best spatial resolution achieved by Indian remote sensing satellites is approximately:

• A. 5.8 m
• B. 10.0 m
• C. 2.5 m
• D. 23.5 m

Hint:

Important IRS resolutions: \[ \boxed{ \begin{aligned} \text{Cartosat-1} &\rightarrow 2.5\ \text{m} \text{LISS-IV} &\rightarrow 5.8\ \text{m} \text{LISS-III} &\rightarrow 23.5\ \text{m} \end{aligned} } \]

Answer 1

The Correct Option is C

Concept: Among the listed options, the highest (finest) spatial resolution achieved by Indian Remote Sensing (IRS) satellites is approximately \(2.5\) m, provided by satellites such as Cartosat-1.

Step 1: Compare the resolutions. \[ \boxed{ 2.5\ \text{m} < 5.8\ \text{m} < 10\ \text{m} < 23.5\ \text{m} } \] A smaller pixel size corresponds to a higher spatial resolution.

Step 2: Choose the best resolution. Hence, \[ \boxed{\text{The best spatial resolution is approximately }2.5\ \text{m}.} \] Therefore, the correct option is \[ \boxed{(C).} \]