Physics, asked by sahilpatil5040, 9 months ago

In a container 2 kg of water is placed at 30°C. A light beam of frequency 2 × 1010 Hz is allowed to fall on the water and all the energy of photons is used to heat the water. What will be required number of photons to heat water from 30°C to 31°C? (Take h = 7 × 10–34 J s)

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Answered by Kshitij2299

Answer:

6*10^26

Explanation:

plzz refer to the attachment

hope it helps

i just got a bit stuck due to specific heat capacity of water(s) as i didn't see that ques was asking for answer in joule not calorie may be anyone solving this would have same problems o i have wrote 2 values of specific heat capacity of water in joule per kg per degree Celsius and cal per gram per kelvin

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In a container 2 kg of water is placed at 30°C. A light beam of frequency 2 × 1010 Hz is allowed to fall on the water and all the energy of photons is used to heat the water. What will be required number of photons to heat water from 30°C to 31°C? (Take h = 7 × 10–34 J s)​

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In a container 2 kg of water is placed at 30°C. A light beam of frequency 2 × 1010 Hz is allowed to fall on the water and all the energy of photons is used to heat the water. What will be required number of photons to heat water from 30°C to 31°C? (Take h = 7 × 10–34 J s)