Electromagnetic radiation with a wavelength of 525 nm appears as green light to the human eye. The energy of one photon of this light is j.

3.784 * 10^(-9) J

Explanation:

Wavelength of the light, λ = 525 nm = 525 * 10^(-9) m

The energy of a wave is given in terms of wavelength as:

E = hc/λ

Where h = Planck's constant

c = speed of light

Therefore, Energy, E, is:

E = (6.626 * 10^(-34) * 2.998 * 10^8) / (525 * 10^(-9))

E = 3.784 * 10^(-9) J

This is the energy of the wave and hence, a photon.

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.