3 years ago

Help me it's due tomorrow

Physics

1 answer:

Tresset [83]3 years ago

4 0

I think it's B. :) <3

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Explanation:

Option C a magnet attracting a nail

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3 years ago

Calculate the maximum absolute uncertainty for R if:

erma4kov [3.2K]

Answer:

ΔR = 5 s

Explanation:

The absolute uncertainty or error in an expression is

ΔR = | $\frac{dR}{dB}$ | ΔB + | $\frac{dR}{dA}$ | ΔA

the absolute value guarantees to take the unfavorable case, that is, the maximum error.

We look for the derivatives

$\frac{dR}{dB}$ = 1

$\frac{dR}{dA}$ = -1

we substitute

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of the data

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Answer:

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Calculate the wavelength and frequency at which the intensity of the radiation is a maximum for a blackbody at 298 K. You will n

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Answer:

Wavelength, $\lambda=9.72\times 10^{-6}\ m$

Frequency, $f=3.08\times 10^{13}\ Hz$

Explanation:

We need to find the intensity of the radiation is a maximum for a black body at 298 K. It can be calculated using Wein's displacement law. It is given by :

$\lambda T=2.898\times 10^{-3}\ m-K$

$\lambda=\dfrac{2.898\times 10^{-3}}{T}$

Here, T = 298 K

$\lambda=\dfrac{2.898\times 10^{-3}}{298}$

$\lambda=9.72\times 10^{-6}\ m$

If f is the frequency of black body radiation. It is given by :

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3 years ago

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I would think that would be C.

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4 years ago