Aphoton has an energy of 2.93 × 10 to the power of -25 j. what is its frequency? what type of electromagnetic radiation is this photon?

The radiation has a frequency of and is a type of radio wave.

Explanation:

The equation given by Planck's follows:

where,

E = energy of the light  =

h = Planck's constant  =

= frequency of light = ?

Putting values in above equation, we get:

The relation between frequency and wavelength is given as:

where,

c = the speed of light =

= frequency of radiation =

= wavelength of the radiation = ?

Putting values in above equation, we get:

The radiation having wavelength 0.677 m belongs to radio waves.

Hence, the radiation has a frequency of and is a type of radio wave.

what is the general relationship between a galaxy's distance from earth and its speed?

the answer is:

the farther away a galaxy is from us, the faster it is moving away from us.