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Vitek1552 [10]
3 years ago
13

What is the longest wavelength in the molecule’s absorption spectrum??

Physics
2 answers:
Alisiya [41]3 years ago
6 0
The longest wavelength in the Molecule's absorption spectrum is 2250nm
irakobra [83]3 years ago
4 0

Radiation emitted can also have the same wavelength as absorbed radiation, the term "resonant fluorescence".

<h2>Further explanation </h2>

Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation. Fluorescence is a form of luminescence. In some cases, the light emitted has longer waves and less energy than the absorbed radiation. Even so, when electromagnetic radiation is absorbed so much, it can be that one electron absorbs two photons; absorption of these two photons can encourage radiation with a wave that is shorter than the absorbed radiation.

The most striking example of fluorescence occurs when the absorbed radiation is in the ultraviolet spectrum, so that the human eye is not visible, and the light emitted is in the visible spectrum.

Fluorescence is widely used, including in the fields of mineralogy, gemology, chemical sensors (fluorescence spectroscopy), fluorescent marking, staining, biological detectors, and of course fluorescent lamps.

Understanding of the effects of radiation fluorescence on matter is getting deeper along with the rapid development of technology, especially in the fields of solids, light, experimental materials, data processing, measurement, and others. If the solid is observed at the smallest size (atomic), in the fluorescence effect there is an area of ​​luminescence of light or heat which can be widely used for the examination or measurement of radiation-absorbing doses. An example of the most recent use of the effect of fluorescence is to reduce exposure to X-ray radiation in health checks. Next will be explained about the theory of the effects of radiation fluorescence, characteristics, and examples of their use in the measurement of radiation absorption dose.

Learn more

resonant fluorescence brainly.com/question/3707544

wavelength brainly.com/question/3669889

Details

Grade: High School

Subject: Physics

Keyword: wavelength, fluorescence, resonant

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You place a 500 g block of an unknown substance in an insulated container filled 2 kg of water. The block has an initial tempera
Nina [5.8K]

Answer:

3349J/kgC

Explanation:

Questions like these are properly handled having this fact in mind;

  • Heat loss = Heat gained

Quantity of heat = mcΔ∅

m = mass of subatance

c = specific heat capacity

Δ∅ = change in temperature

m₁c₁(∅₂-∅₁) = m₂c₂(∅₁-∅₃)

m₁ = mass of block = 500g = 0.5kg

c₁  = specific heat capacity of unknown substance

∅₂ = block initial temperature = 50oC

∅₁ = equilibrium temperature of block and water after mix= 25oC

m₂= mass of water = 2kg

c₂ = specific heat capacity of water = 4186J/kg C

∅₃ = intial temperature of water = 20oC

0.5c₁(50-25) = 2 x 4186(25-20)

And we can find c₁ which is the unknown specific heat capacity

c₁ = \frac{2*4186*5}{0.5*25}= 3348.8J/kg C≅ 3349J/kg C

4 0
3 years ago
A loop of area 0.250 m^2 is in a uniform 0.020 0-T magnetic field. If the flux through the loop is 3.83 × 10-3T· m2, what angle
Nostrana [21]

Answer:

40.0⁰

Explanation:

The formula for calculating the magnetic flux is expressed as:

\phi = BAcos\theta where:

\phi is the magnetic flux

B is the magnetic field

A is the cross sectional area

\theta is the angle that the normal to the plane of the loop make with the direction of the magnetic field.

Given

A = 0.250m²

B = 0.020T

\phi = 3.83 × 10⁻³T· m²

3.83 × 10⁻³ = 0.020*0.250cosθ

3.83 × 10⁻³ = 0.005cosθ

cosθ = 0.00383/0.005

cosθ = 0.766

θ = cos⁻¹0.766

θ = 40.0⁰

<em>Hence the angle normal to the plane of the loop make with the direction of the magnetic field is 40.0⁰</em>

6 0
3 years ago
the natural process where the sun's energy is trapped by the atmosphere to make the earth warm enough for life is known as globa
alexira [117]
The natural process is called greenhouse effect. This is when the Sun's light enters the Earth, and converts to heat. Light passes through the Earth's atmosphere much easier compared to heat. Because of this, heat is trapped on Earth because it cannot exit the atmosphere as easily as light does.
6 0
4 years ago
Which of the following is WRONG?
iren2701 [21]
It’s D the time period within pendulums are constant, distance is always measured with kilometers within cities and basic unit is always seconds.
3 0
3 years ago
Read 2 more answers
A 817 kg car has four 8.91 kg wheels. When the car is moving, what fraction of the total kinetic energy of the car is due to rot
KATRIN_1 [288]

Answer:

0.0107

Explanation:

We know that

The rotational kinetic energy due to four wheel is

1/2ဃ²I x 4

So

1/4mR²(v/R)² = mv²

But kinetic energy along straight path of the car is 1/2mv²

=> 1/2( 817)v ²

Kc= 408.5v²

So The fraction of total kinetic energy that is due to rotation of the wheel about their axis

Is Kw/Kw+Kc

and Kw = 1/2* 8.91v²= 4.45v²

So 4.45v²/ 4.45v²+ 408.5v²

= 0.0107 as fraction of total kinetic energy

8 0
3 years ago
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