Question

Find the energy in electronvolts of a 4.0×1018-Hz X-ray photon.

Answer 1

A simple (non-self-intersecting) quadrilateral is a parallelogram if and only if any one of the following statements is true: Two pairs of opposite sides are parallel (by definition). Two pairs of opposite sides are equal in length. Two pairs of opposite angles are equal in measure.

Answer 2

Answer:

E = h * c / λ = h * f ,

E is the energy of a photon.

h is the Planck constant,

c is the speed of light,

λ is the wavelength of a photon,

f is the frequency of a photon

Explanation:

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