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Vlad [161]
3 years ago
7

What is the temperature if the peak of a blackbody spectrum is at 19.0 nm ?

Physics
1 answer:
nlexa [21]3 years ago
6 0

Answer:

1.52 * 10⁵ K

Explanation:

When the temperature of a blackbody radiator increases, the overall radiated energy increases and the peak of the radiation curve moves to shorter wavelengths. When the maximum is evaluated from the Planck radiation formula, the product of the peak wavelength and the temperature is found to be a constant.  

By Wien's Law,

λ * T = 2.898 * 10⁻³ mK

∴ T = 2.898 * 10⁻³/λ

Given λ = 19 nm = 19 * 10⁻⁹

T = 2.898 * 10⁻³ / 19 * 10⁻⁹

  =1.52 * 10⁵ K

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makvit [3.9K]

Answer:

1.5 * 10^-2 Tm^2

Explanation:

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A = 0.32 m^2

theta = 30

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Which one of the following statements is true?
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3 years ago
An emf of 0.50 v is induced across a coil when the current through it changes uniformly from 0.55 to 0.95 a in 0.40 s. what is t
love history [14]

The correct answer is 0.67 h

The coil's induced emf is specified as e=0. 50 v.

i i = 0.55 A is the initial value of the current flow.

I f = 0.95 A is the total amount of current flowing.

The shift in current occurs in a period of time when dt = 0.40 s.

The self-inductance is determined as follows:

The current change rate is represented here by dI/dt.

Step 2 After entering the values,

As a result, the self-inductance is 0.67 H.

The definition of self inductance is the induction of a voltage in a wire that carries current when the current in the wire is changing. When there is self-inductance, a circuit's own changing current creates a magnetic field that causes a voltage to be induced.

Learn more about Self inductance here :-

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Thats what makes sediment rocks sediment rocks

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