Is an Ideal Black Body Visible?

[Swetasuria]

Would an ideal black body be visible to us?

What about Ferry's black body? How close was it to an ideal black body?

 

[DrStupid]

Would an ideal black body be visible to us?

It depends on it's temperature. In case of a cold black body we would see that we do not see it.

 

[QuantumPion]

You can certainly see an ideal black body as long as its temperature is high enough to emit visible light.

The most common example of an ideal black body is a hole on an oven. The hole absorbs all light and reflects no light (because it is a hole, not a real surface) and the light that comes out is the average temperature of the oven.