Plants can be lit 24 hours a day. Plants should not be lit after they are sprayed or they can get the plant equivalent of sunburn.
12 hrs.
You can expect normal plant growth. The white light is similar to the sun in having all the colors so this can help the plant to grow naturally if there is not a lot of sun.
no, a plant would not grow without light
Nothing would happen to the plant. It will have a normal growth provided other parameters are normal.
the plant would die
Normal.
fertilizer
The plant would never flower, it needs blue light to flower but it would grow normally....
You can expect normal plant growth. The white light is similar to the sun in having all the colors so this can help the plant to grow naturally if there is not a lot of sun.
The plant would die. Chloroplast turns light into energy and without energy the plant would eventually die.
Sunlight
Due to itiolation
The one in the light would grow better.