Assume the mostly infrared radiation from a heat lamp acts like a continuous wave with wavelength 1.50

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Assume the mostly infrared radiation from a heat lamp acts like a continuous wave with wavelength 1.50 μm.

(a) If the lamp's 200-W output is focused on a person's shoulder, over a circular area 25.0 cm in diameter, what is the intensity in W/m²?

(b) What is the peak electric field strength?

(d) How long will it take to increase the temperature of the 4.00-kg shoulder by 2.00° C, assuming no other heat transfer and given that its specific heat is 3.47x10³ J/kg·°C?

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College Physics

ISBN: 9781711470832

2nd Edition

Authors: OpenStax

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Question Posted: Nov 26, 2023 12:12 AM

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Assume the mostly infrared radiation from a heat lamp acts like a continuous wave with wavelength 1.50

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