Practice Types of Sensors - 2.5.2 | 2. Fundamentals of Remote Sensing | Geo Informatics
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Knowledge

2.5.2 - Types of Sensors

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the primary source of energy for passive sensors?

💡 Hint: Think about how these sensors capture images; what do they rely on?

Question 2

Easy

Can active sensors operate at night?

💡 Hint: Consider how these sensors perform in various weather conditions.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the main difference between passive and active sensors?

  • Passive sensors use internal energy; Active sensors use sunlight
  • Passive sensors work only during the day; Active sensors can work at night
  • Passive sensors are faster than active sensors

💡 Hint: Recall the definitions of both types of sensors.

Question 2

True or False: LiDAR is a passive sensor.

  • True
  • False

💡 Hint: Consider whether LiDAR uses external light.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

In an engineering project, you need to monitor land degradation during nighttime. Which type of sensor would you use and why? Discuss your reasoning.

💡 Hint: Think about sensor functioning in different light conditions.

Question 2

Consider a scenario where atmospheric conditions prevent sunlight from reaching the Earth’s surface. Which type of sensor would provide reliable data in this case, and why?

💡 Hint: Consider which sensor emits energy.

Challenge and get performance evaluation