Questions with the keyword 'burn'

• If i got lazers of each colour of the rainbow and pointed them at one spot, would that spot be white light? or would by connorhoad to Andrew, Ash, Gem, Paige, SJ Comments: (No comments so far )
• can you desighn a laser that can burn thrug bark of a tree by ticehurst to Andrew, Ash, Gem, Paige, SJ Comments: (No comments so far )