Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 1 (Q.No. 1)
1.
Which type of light energy is effectively absorbed by CO2 in the lower boundary of the troposphere ?
X - rays
UV - rays
Visible light
Infra-red rays
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
13 comments Page 1 of 2.

VIRAJ said:   2 years ago
Yes, D is correct because of the greater wave length.

G.jaswanth said:   2 years ago
Infrared rays are effectively absorbed in the lower boundary of the troposphere. Because it has a greater wavelength. And co2 is a greenhouse gas.

So, the right answer is (D).

Drashti solanki said:   2 years ago
Uv - rays may not Sufficient to absorb co2?

Anil said:   4 years ago
Infra-red-rays have high wavelength.

Nilkamal mahadani said:   5 years ago
Infra red rays have high wave length & when it is reflected, co2 gases absorbed this. So the answer is D.

Pranita Chandanshive said:   5 years ago
CO2 is major greenhouse gas and absorbs light energy of greater wavelength like infrared radiation. When light energy is absorbed it gets converted into heat or thermal energy. As we move towards upper layers in the troposphere, temperature goes on decreasing and air becomes cooler. It expands due to decrease in pressure.

Pradee said:   6 years ago
Infra is one of most power.

G.lokesh said:   8 years ago
What is the reason the infra red rays only vibrate?

Sani chavan said:   8 years ago
Wavelength of light is 300000000. So in troposphere there is O2 is present, presence of O2 CO2 absorbing.

RAGHAVENDRA said:   8 years ago
What is the reason? How?


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