In the absence of ozone layer, which rays will enter into atmosphere?
A). Infrared
B). Visible
C). Ultraviolet
D). X-rays
Ultraviolet
The ozone layer is a layer in Earth’s atmosphere containing relatively high concentrations of ozone (O3). The ozone layer absorbs 97–99% of the Sun’s medium frequency ultraviolet light (from about 200 nm to 315 nm wavelength), which potentially damages exposed life forms on Earth. Although the concentration of the ozone in the ozone layer is very small, it is vitally important to life because it absorbs biologically harmful ultraviolet (UV) radiation coming from the sun. Extremely short or vacuum UV (10-100 nm) is screened out by nitrogen.
1. What is the full form of ''AM' regarding radio broadcasting?
2. Atomic power plant work son the principle of
3. Among the following materials sound travels fastest in
4. Which physicists is the writer of the book 'A Brief History of Time'?
5. Which is best used as a sound absorbing material in partition walls ?
7. Which of the following is preferred for accelerating electrons?
8. The sensation of weightlessness in a spacecraft in an orbit is due to the