Question
Which of the following colours of visible light has lowest energy?
Which of the following colours of visible light has lowest energy?
D. Red
The energy of a photon is given by the relation E = hc . This shows that energy is inversely proportional to the wavelength of light. In the visible spectrum (VIBGYOR), red light has the maximum wavelength. Therefore, red light has the lowest energy. Answer: Red
Related: Chemistry — Structure of Atom · All PYQ Banks