Two sources produce electromagnetic waves. source b produces a wavelength that is three times the wavelength produced by source a. each photon from source a has an energy of 2.1*10^-18 j. what is the energy of a photon from source b?

Explanation:

1) Key concepts and notation

For this case we can use the Einstein's formula for the energy of a photon. The original formula from Einstein's is:

Also Planck's find and equation for the energy of a photon, given by:

representing the Planck's constant

f= the frequency

Based on the above formula, the energy of a photon depends only on its wavelength and frequency. The energy is proportional to (given from the problem).

2) Formulas to apply

The following relationship is important:

  (1)

Where is the speed of the light

Solving f from equation (1) we got

  (2)

3) Apply the formulas

We can find the energy for each source on the following way:

Replacing the value given, we got:

  (3)

After this solving for from equation (3) we got:

  (4)

Similarly for the energy source B we have:

  (5)

For the next step we can apply the condition given, and we got:   (6)

Replacing the condition on equation (6) into equation (5):

  (7)

And now, we can replace equation (4) into equation (7):

  (7)

So the final answer would be .

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.

frequency, z, and the collision density, z, in carbon dioxide (co2), r 180 pm at 30 °c and 120 kpa