If I was in a room with a super-powerful lightbulb that only emitted light of frequency higher than what humans can percieve, would the room be completely dark to me?
>>8082511
Yes
>>8082511
obviously. You don't see infrared or radiation do you?
>>8082511
It wouldn't necessarily be dark. It depends on the particular frequency of the light and what's in the room. For instance, many materials fluoresce (emit visible light) when exposed to ultraviolet light.
>>8082511
No, there are interactions that will bring some of the light down far enough to be visable.
It will still be very dark, though.
>>8082571
You can see near IR if your eyes adjust (although it's not very healthy).
His question though said that the light from the bulb can not be perceived by humans so it doesn't even make sense to ask it since the answer is obviously no.
Related question :
Will a star that emits frequencies outside of the human visible range be invisible to the naked eye?
>>8082948
Anon did you just solve dark matter?
>>8082953
Sure, since we don't do radio astronomy or look at x-rays or anything.
>>8082948
If such a star were to exist, then perhaps yes.
>>8082957
Buh do we do gamma astronomy?
>>8082982
Yes.
How else do you think Gamma-ray bursts are observed?
>>8082948
You must be new here
If it is high as gamma you will start to see little white point and since it is very powerfull you will die painfully in few minutes
>>8082511
Surprised no one gave the right answer.
https://en.wikipedia.org/wiki/Black-body_radiation
Even if the room starts near absolute zero, the light bulb will heat up the room, which will cause the walls to glow ala black body radiation.
Assuming you don't die before that happens.
>>8082511
start moving away and redshift it.
>>8082511
Yeah, enjoy getting cancer.
>>8082948
Yeah - look up radio pulsars. They're well cool.
