Hi Folks, hope all is well.
When an LED is flashing at 2 times a second, the human eye can perceive the ON and OFF state. We can clearly see when the ON state is and when the OFF state is.
When it is flashing 10,000 times per second, we see the LED in the ON state only.
Why is it that when the LED is flashing at 10,000 times per second, it is the ON state that is visible to the human eye but not the OFF state? Why does the ON state seem to have precedence over the OFF state?
Why don't we see the LED as OFF while it is flashing at 10,000 times per second? If the time periods of both states are the same, why does the LED seem to be ON all the time?
Why does the LED seem to be ON all the time? It might as well seem to be OFF all the time!
Assume that the duty cycle is 50%.
Thanks for the replies.
When an LED is flashing at 2 times a second, the human eye can perceive the ON and OFF state. We can clearly see when the ON state is and when the OFF state is.
When it is flashing 10,000 times per second, we see the LED in the ON state only.
Why is it that when the LED is flashing at 10,000 times per second, it is the ON state that is visible to the human eye but not the OFF state? Why does the ON state seem to have precedence over the OFF state?
Why don't we see the LED as OFF while it is flashing at 10,000 times per second? If the time periods of both states are the same, why does the LED seem to be ON all the time?
Why does the LED seem to be ON all the time? It might as well seem to be OFF all the time!
Assume that the duty cycle is 50%.
Thanks for the replies.
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