Question

Which of the following factors affect(s) the intrinsic spatial resolution of remote sensing imagery?

• A. Sensor pixel size
• B. Altitude of the satellite
• C. Wavelength of the captured electromagnetic radiation
• D. Satellite communication bandwidth

Hint:

Spatial resolution in remote sensing is influenced by the sensor's pixel size, the altitude of the satellite, and the wavelength of the electromagnetic radiation captured.

Answer 1

The Correct Option is A, B, C

Step 1: What spatial resolution depends on.
Spatial resolution is the smallest ground feature a sensor can pick out. We test which listed factors really control it.

Step 2: Sensor pixel size.
Smaller detector pixels capture finer ground detail, so pixel size sets resolution directly. Statement A counts.

Step 3: Satellite altitude.
A lower orbit brings the sensor nearer the ground, so each pixel covers a smaller patch and detail improves. Statement B counts.

Step 4: Wavelength.
The wavelength used limits how sharp the image can be, since longer waves blur fine detail. Statement C counts. The communication bandwidth in D only affects how fast data is sent, not the sharpness, so D is out.

Step 5: Final choice.
The factors that matter are A, B and C.
\[ \boxed{\text{A, B, C}} \]