2 years ago

Which of the following would you expect to have the highest specific heat? SC.A.1.3.3

Physics

1 answer:

katovenus [111]2 years ago

7 0

B. I'm not that sure about this but i am just taking a guess

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Suppose a light source is emitting red light at a wavelength of 700 nm and another light source is emitting ultraviolet light at

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Answer:

b) twice the energy of each photon of the red light.

Explanation:

$\lambda$ = Wavelength

h = Planck's constant = $6.626\times 10^{-34}\ m^2kg/s$

c = Speed of light = $3\times 10^8\ m/s$

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For UV light

$E_2=\dfrac{hc}{\dfrac{\lambda_1}{2}}$

Dividing the equations

$\dfrac{E_1}{E_2}=\dfrac{\dfrac{hc}{\lambda_1}}{\dfrac{hc}{\dfrac{\lambda_1}{2}}}\\\Rightarrow \dfrac{E_1}{E_2}=\dfrac{1}{2}\\\Rightarrow E_2=2E_1$

Hence, the answer is b) twice the energy of each photon of the red light.

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