An emission ray has a frequency of 5.10 × 10¹ê hz. given that the speed of light is 2.998 × 10§ m/s, what is the wavelength of the ray?

To calculate this we will use the light equation:

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.

d

explanation:

v=uf/(u-f)

= 5.10/(5-10) convex lens has positive focal length

=50/-5

=-10 cm (formed at other side)