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Consider the following statements regarding Ultraviolet (UV) radiation.
1. UV-C radiation can be used to disinfect the air and also in water treatment.
2. UV-A rays can penetrate the middle layer of human skin and can cause aging of skin cells and damage the cells’ DNA.
Which of the above statements is/are incorrect?
  • a)
    1 only
  • b)
    2 only
  • c)
    Both 1 and 2
  • d)
    Neither 1 nor 2
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Consider the following statements regarding Ultraviolet (UV) radiation...
UV-A rays can penetrate the middle layer of your skin or the dermis and can cause aging of skin cells and indirect damage to cells’ DNA. UV-C radiation from man-made sources has been known to cause skin burns and eye injuries.
UV-C radiation (wavelength around 254 nm) has been used for decades to disinfect the air in hospitals, laboratories, and also in water treatment.
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Consider the following statements regarding Ultraviolet (UV) radiation.1. UV-C radiation can be used to disinfect the air and also in water treatment.2. UV-A rays can penetrate the middle layer of human skin and can cause aging of skin cells and damage the cells’ DNA.Which of the above statements is/are incorrect?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'D'. Can you explain this answer?
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