Question

infrared waves have many different applications. select the true statements.
infrared satellite images can be used to monitor land after a forest fire.
infrared waves are used to see objects on land or in space that are not easily seen with visible light.
special devices, like thermal cameras, use infrared waves to create a thermal image.
stars born in dust clouds are visualized using infrared light.

Explanation:

1. Infrared satellite images detect heat signatures, allowing monitoring of post-forest fire land to identify remaining hotspots or damaged areas.
2. Infrared waves can penetrate obscurations (like dust, smoke) and detect heat from objects that are not visible in the visible light spectrum.
3. Thermal cameras detect the infrared radiation (heat) emitted by objects to generate thermal images that show temperature differences.
4. Dust clouds block visible light, but infrared light can pass through it, making it possible to visualize newly formed stars within these clouds.

Answer:

• Infrared satellite images can be used to monitor land after a forest fire.
• Infrared waves are used to see objects on land or in space that are not easily seen with visible light.
• Special devices, like thermal cameras, use infrared waves to create a thermal image.
• Stars born in dust clouds are visualized using infrared light.