Energy changes in generator ?

Physics

2 answers:

Firdavs [7]3 years ago

7 0

What do you mean? because yes the energy is converted into electricity but the question isn't specific

EastWind [94]3 years ago

7 0

<span> A generator CONVERTS energy from one form to another. So the answer is yes.

Hope this helps !

Photon</span>

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What is the wavelength of a 1.28 x 10^17 Hz wave?

lisov135 [29]

Answer:

The wavelength of the wave is 2.34 nm.

Explanation:

It is required to find the wavelength of a $1.28\times 10^{17}\ Hz$ wave. A wave moves with a speed of light. Speed of a wave is given in terms of wavelength and frequency. So,

$v=f\lambda$

$\lambda=\dfrac{c}{f}\\\\\lambda=\dfrac{3\times 10^8}{1.28\times 10^{17}}\\\\\lambda=2.34\times 10^{-9}\ m\\\\\text{or}\\\\\lambda=2.34\ nm$

So, the wavelength of the wave is 2.34 nm.

4 0

3 years ago

Which of the following statements is false?

vladimir1956 [14]

An excited atom can return to its ground state by absorbing electromagnetic radiation is false about the electromagnetic radiation.

Option B

<u>Explanation</u>:

In the scope of modern quantum theory, the term Electromagnetic radiation is identified as the movement of photons through space. Almost all the sources of energy that we utilize today such as coal, oil, etc are a product of electromagnetic radiation which was absorbed from the sun millions of years ago.

Various properties of electromagnetic radiations are a directly proportional relationship between the energy and the frequency, Inverse proportionality between frequency and the wavelength, etc. Hence, we can conclude that an "excited atom" can never return to its ground state by assimilating electromagnetic radiation and the 2nd statement is false.