Home
Class 12
PHYSICS
Which is the most harmful radiation ente...

Which is the most harmful radiation entering the atmosphere of earth from outer space?

A

X-Rays

B

Visible rays

C

Gamma radiations

D

Radio waves

Text Solution

AI Generated Solution

The correct Answer is:
To determine which is the most harmful radiation entering the atmosphere of Earth from outer space, we can analyze the given options: x-rays, visible rays, gamma radiations, and radio waves. ### Step-by-Step Solution: 1. **Understanding Radiation Types**: - **X-rays**: These are high-energy electromagnetic waves, but they are less energetic than gamma rays. - **Visible Rays**: This is the range of electromagnetic radiation that is visible to the human eye. It is not harmful in the context of radiation from space. - **Gamma Radiations**: These are the highest energy form of electromagnetic radiation, with very short wavelengths and high frequency. - **Radio Waves**: These have the longest wavelengths and lowest frequencies in the electromagnetic spectrum, making them the least harmful. 2. **Comparing Frequencies**: - The energy of electromagnetic radiation is directly related to its frequency. Higher frequency means higher energy and potentially more harmful effects. - Among the options provided, gamma rays have the highest frequency, followed by x-rays, visible light, and then radio waves. 3. **Assessing Harmfulness**: - Gamma rays are known for their penetrating power and can cause significant biological damage, making them the most harmful type of radiation. - While ultraviolet (UV) rays are also harmful, they are largely absorbed by the Earth's ozone layer and do not reach the surface in significant amounts. 4. **Conclusion**: - Given the analysis, gamma radiations are the most harmful radiation entering the Earth's atmosphere from outer space. ### Final Answer: The most harmful radiation entering the atmosphere of Earth from outer space is **gamma radiations**. ---
To determine which is the most harmful radiation entering the atmosphere of Earth from outer space, we can analyze the given options: x-rays, visible rays, gamma radiations, and radio waves. ### Step-by-Step Solution: 1. **Understanding Radiation Types**: - **X-rays**: These are high-energy electromagnetic waves, but they are less energetic than gamma rays. - **Visible Rays**: This is the range of electromagnetic radiation that is visible to the human eye. It is not harmful in the context of radiation from space. - **Gamma Radiations**: These are the highest energy form of electromagnetic radiation, with very short wavelengths and high frequency. ...
Promotional Banner

Similar Questions

Explore conceptually related problems

Which are the most dangerous radiations?

Which is most harmful for the life on the globe?

Which of the following solar radiations pass through the atmosphere of earth ? X-rays, ultraviolet rays, visible light rays, infrared radiation.

Which is the most abundant compound on earth ?

Which is the most effective in warming atmosphere

Which was not present freely in the early atmosphere of the earth?

The most harmful of ultraviolet radiations are

Which of the following is not one of the prime health risk associated with greater UV radiation through the atmosphere due to depletion of stratospheric ozone ?

Which of the following, present in the stratosphere prevents 99.5 percent of the sun’s harmful UV radiations from reaching the earth’s surface ?

Ozone is an unstable, dark blue diamagnetic gas. It absorbs strongly the UV radiation, thus protecting the people on the earth from the harmful UV radiation from the sun. The use of chlorofluorocarbon (CFC) in aerosols and refrigerators, and their subsequent escape into the atmosphere, is blamed for making holes in the ozone layer over the Antarctic, and Arctic. Ozone acts as a strong oxidizing agent in acidic and alkaline medium. For this property ozone is used as a germicide and disinfectant for sterilizing water and improving the atmosphere of crowded places. which of the following statements is correct ?