Consider the following statements regarding the Radiative cooling: It is a passive cooling technology without any significant energy consumption. It can be used to manufacture paints that are engineered to cool structures like buildings.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer?

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Consider the following statements regarding the Radiative cooling:

It is a passive cooling technology without any significant energy consumption.
It can be used to manufacture paints that are engineered to cool structures like buildings.

Which of the statements given above is/are correct?

a)
1 only
b)
2 only
c)
Both 1 and 2
d)
Neither 1 nor 2

Correct answer is option 'C'. Can you explain this answer?

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Consider the following statements regarding the Radiative cooling: It ...

Researchers from Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) have developed a radiative cooling paint, which is specifically engineered to cool structures like buildings, pavers, and tiles in hot weather conditions.

It is developed from a novel MgO-PVDF polymer nanocomposite.
They used ultra-white and ultra-emissive magnesium oxide (MgO)-polyvinylidene fluoride (PVDF) nano-composite prepared from materials that are earth abundant, cheap, non-toxic and non-harmful.
The optimized MgO-PVDF with a dielectric nanoparticles resulted in large solar reflectance of 96.3% and a record high thermal emission of 98.5% due to Mg─O bond vibrations, and other stretching/bonding vibrations from the polymer.
The researchers developed polymer nanocomposite paint by using a simple solution-processed technique.
By measuring the temperature of the paint using a thermocouple, excellent cooling performance was demonstrated under hot sunlight.
The nanocomposite paint exhibited water-resistant hydrophobic properties and can be easily coated on pavers, wood sticks and so on with high uniformity and good adhesion.
The surface temperature of a treated paver decreases by approximately 10°C under intense sunlight-- almost double of the reduction that conventional white paints give.
This low-cost, solution-processed paint demonstrates significant cooling capabilities with a high solar reflectivity and infrared thermal emissivity.

What is Radiative cooling?

It is a passive cooling technology without any energy consumption, compared to conventional cooling technologies that require power sources and dump waste heat into the surroundings.

Hence both statements are correct.

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Consider the following statements regarding the Radiative cooling: It is a passive cooling technology without any significant energy consumption. It can be used to manufacture paints that are engineered to cool structures like buildings.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer?

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