Question: What is the main characteristic of a black body?
Options:
It reflects all incident light
It absorbs all incident light
It emits light only at high temperatures
It emits light only at low temperatures
Correct Answer: It absorbs all incident light
Solution:
A black body is characterized by its ability to absorb all incident light, regardless of frequency or angle of incidence.
What is the main characteristic of a black body?
Practice Questions
Q1
What is the main characteristic of a black body?
It reflects all incident light
It absorbs all incident light
It emits light only at high temperatures
It emits light only at low temperatures
Questions & Step-by-Step Solutions
What is the main characteristic of a black body?
Step 1: Understand what a black body is. A black body is an idealized physical object that perfectly absorbs all light that hits it.
Step 2: Know that a black body does not reflect any light. This means it takes in all the light energy without bouncing any back.
Step 3: Recognize that this absorption happens for all types of light, no matter the color or angle it comes from.
Step 4: Remember that because it absorbs all light, a black body also emits light when it gets hot, and the color of the emitted light depends on its temperature.
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