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Photons absorbed in matter are converted to heat. A source emitting n photon/sec of frequency ν is used to convert 1kg of ice at 0°C to water at 0°C. Then, the time T taken for the conversion
  • a)
    decreases with increasing n, with ν fixed
  • b)
    decreases with n fixed, ν increasing
  • c)
    remains constant with n and ν changing such that nν = constant.
  • d)
    increases when the product nν increases. 
Correct answer is option 'A,B,C'. Can you explain this answer?
Most Upvoted Answer
Photons absorbed in matter are converted to heat. A source emitting n ...
Concept:
The amount of energy released or absorbed is given by
E = mL
where m is the mass of the substance and L is the Latent Heat.
Solution:
Energy used in the conversion of ice to water is given by 
⇒ mL = 1000 g x 80 cal g-1 = 80000 cal
The energy of the photon absorbed is given by
⇒ nT x E = nT x hν
⇒ nThν = mL
Free Test
Community Answer
Photons absorbed in matter are converted to heat. A source emitting n ...
F has a power output of nfh, where h is Planck's constant.
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Photons absorbed in matter are converted to heat. A source emitting n photon/sec of frequency ν is used to convert 1kg of ice at 0°C to water at 0°C. Then, the time T taken for the conversiona)decreases with increasing n, with ν fixedb)decreases with n fixed, ν increasingc)remains constant with n and ν changing such that nν = constant.d)increases when the product nν increases.Correct answer is option 'A,B,C'. Can you explain this answer?
Question Description
Photons absorbed in matter are converted to heat. A source emitting n photon/sec of frequency ν is used to convert 1kg of ice at 0°C to water at 0°C. Then, the time T taken for the conversiona)decreases with increasing n, with ν fixedb)decreases with n fixed, ν increasingc)remains constant with n and ν changing such that nν = constant.d)increases when the product nν increases.Correct answer is option 'A,B,C'. Can you explain this answer? for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Question and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about Photons absorbed in matter are converted to heat. A source emitting n photon/sec of frequency ν is used to convert 1kg of ice at 0°C to water at 0°C. Then, the time T taken for the conversiona)decreases with increasing n, with ν fixedb)decreases with n fixed, ν increasingc)remains constant with n and ν changing such that nν = constant.d)increases when the product nν increases.Correct answer is option 'A,B,C'. Can you explain this answer? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Photons absorbed in matter are converted to heat. A source emitting n photon/sec of frequency ν is used to convert 1kg of ice at 0°C to water at 0°C. Then, the time T taken for the conversiona)decreases with increasing n, with ν fixedb)decreases with n fixed, ν increasingc)remains constant with n and ν changing such that nν = constant.d)increases when the product nν increases.Correct answer is option 'A,B,C'. Can you explain this answer?.
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