Question

Given below are two statements Statement-I: The variations in the tone depend upon the orientation of incoming radiations and surface properties. Statement-II: The smooth and dry object surfaces reflect less energy in comparison to the rough and moist surfaces. The correct answer is

• A. Only statement-I is correct
• B. Only statement-II is correct
• C. Both statement-I and statement-II are correct
• D. Both statement-I and statement-II are incorrect

Hint:

Tone in a remote sensing image is the relative brightness recorded for an object, and it depends on how much energy the surface reflects toward the sensor, which is governed by the geometry of the incoming radiation and

Answer 1

The Correct Option is A

Step 1: Understand tone.
Tone is the brightness an object shows in a remote sensing image, and it depends on how much energy the surface sends back to the sensor.

Step 2: Check Statement-I.
Tone changes with the direction of the incoming radiation and with the surface properties, because both decide how much energy reaches the sensor. So Statement-I is correct.

Step 3: Set up Statement-II.
Statement-II says smooth and dry surfaces reflect less than rough and moist surfaces. We must test this.

Step 4: Think about smooth and dry surfaces.
A smooth dry surface acts like a mirror and reflects strongly in one direction, often sending more energy back, while moisture (water) usually absorbs energy and lowers reflection.

Step 5: Judge Statement-II.
So the claim that smooth dry surfaces reflect less than rough moist ones is wrong, making Statement-II incorrect.

Step 6: State the answer.
Only Statement-I is correct.
\[ \boxed{\text{Only statement-I is correct}} \]