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Natalka [10]
3 years ago
13

For an object producing a thermal spectrum, a higher temperature causes the spectrum to have ___________. a. a peak intensity lo

cated at shorter wavelength b. a peak intensity located at longer wavelength c. more prominent emission lines d. more prominent absorption lines
Physics
1 answer:
anzhelika [568]3 years ago
4 0

Answer:

a. a peak intensity located at shorter wavelength

Explanation:

We can answer this question by using Wien's displacement law, which relates the temperature of a black body to the peak wavelength of the spectrum of its emitted radiation, as follows:

\lambda_p T = b

where:

\lambda_p is the wavelength of the peak of its spectrum

T is the absolute temperature at the surface of the body

b=2.898\cdot 10^{-3} m\cdot K is called Wien's constant

From the equation above, we see that the peak wavelength and the temperature have an inverse relationship. In fact, we can rewrite it as

\lambda_p = \frac{b}{T}

By looking at the equation in this form, we can see that the higher the temperature of the object, the shorter the wavelength of its peak: therefore, the correct answer is

a. a peak intensity located at shorter wavelength

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lianna [129]

Answer: A red supergiant

Explanation:

Red supergiants are the stars that have a supergiant luminosity which has a class of either K or M spectral type. In terms of volume, they are regarded as the largest stars on Earth even though they are not the most luminous.

Red supergiants are formed when a star collapses after the hydrogen fuel that the star has in its core runs out and

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8 0
3 years ago
Find the final temperature of 375 grams of tea (c = 4.184 J/g°C) if its initial temperature is 95°C just before it is placed in
Minchanka [31]

Answer:

the final temperature of the tea is 7.39⁰C.

Explanation:

Given;

mass of the tea, m = 375 g

specific heat capacity of the tea, C = 4.184 JJ/g°C

initial temperature of the tea, t₁ = 95°C

the final temperature of the tea, t₂ = ?

Energy lost by the refrigerator, Q = 137,460 J

The energy lost by the refrigerator is given by the following formula;

-Q = mc(t₂ - t₁)

-137,460 =375 x 4.184(t₂ - 95°C)

-137,460 = 1569(t₂ - 95°C)

t_2-95 = \frac{-137,460}{1569} \\\\t_2-95 = -87.61\\\\t_2 = -87.61 + 95\\\\t_2 = 7.39 \ ^0 C

Therefore, the final temperature of the tea is 7.39⁰C.

4 0
3 years ago
Which list shows the development of atomic models in chronological order?
ratelena [41]
The correct option is PLUM PUDDING, SOLAR SYSTEM, ELECTRON CLOUD. 
J. J Thompson was the scientist who proposed the plum pudding theory of atomic model. Neil Borh was the one who developed the solar system model of atomic theory while the electron cloud model of atomic theory that is presently been used was developed by an Australian scientist called Erwin Schrodinger.<span />
5 0
3 years ago
Read 2 more answers
Aluminum allows for the flow of electrons, while glass does not. Would an aluminum wire surrounded by glass be an effective desi
pantera1 [17]

answer

no

Explanation:

I do not think that I would because even though its a conductor in the insulator I think it would insulate it before it will work (not sure if that makes sense)

3 0
2 years ago
Please help :&lt;
Artemon [7]

Answer: methyl

Explanation:

7 0
3 years ago
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