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Natalka [10]
4 years ago
14

A high school website directs parents to not allow student access to blue laser pointers or allow the students to bring them to

school. It includes a video describing the danger inherent in the misuse of all laser pointers particularly the blue laser pointer. Why would they claim that blue laser pointers are more of a concern than red laser pointers?
Biology
2 answers:
aivan3 [116]4 years ago
7 0
A Blue laser wavelength is 445nm. It power is more than 500mW which can be dangerous for the human eye from more than 200 meters away. Red lasers on the other hand lack the power and distance.
Shalnov [3]4 years ago
5 0

Answer:

Primarily because of the higher energy of blue light than the red light.

Explanation:

Light is formed of photons, each one exhibiting an energy equivalent to E = hf, here h refers to the Planck Constant, and f is the frequency of the light. The frequency of blue light is 650 Hz, while the frequency of red light is about 450 Hz. The higher energy signifies higher energy, thus, blue light is more energetic in comparison to red light, and hence, can result in more destruction than red light.

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4 years ago
TRUE/FALSE. if one parent has all blue eyes in the family and the other parent has brown eyes can the baby have green eyes
brilliants [131]

Answer:

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6 0
2 years ago
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ANTONII [103]
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6 0
4 years ago
In Betta fish, colored bodies (B) are dominant to white bodies (b), and blue tails (T) are dominant to black tails (t). A Betta
Alisiya [41]

Answer:

0

Explanation:

This question involves two genes in Betta fish; one coding for body color and the other coding for tail colour. The allele for colored body (B) is dominant over the allele for white body (b) in the first gene while allele for blue tail (T) is dominant over allele for black tail (t) in the second gene.

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