science
Grade-10
Easy

Question

_______ is the most mutagenic among UV rays.

  1. UV A.

  2. UV B.

  3. UV C.

  4. None of the above.

Hint:

Radiations with shorter wavelength have more energy.

The correct answer is:

UV C.


    • UV or ultraviolet radiation is an electromagnetic radiation
    • UV radiations have a wavelength of 100-400 nm
    • UV rays are divided into 3 bands:
    1. UV A: 315-400 nm
    2. UV B: 280-315 nm
    3. UV C: 100-280 nm
    • Radiations with shorter wavelength will have higher energy and more destructive power
    • UV C has the most damaging effect of all

    • UV B and UV C have mutagenic effects
    • The UV C radiations are filtered by the atmosphere
    • Transition mutation is caused by UV C

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