Question

fill in the blank 6 points
which light, yellow or orange, has more energy? choose your answer...
which light is hotter, red or violet? choose your answer...
which light is the coolest of them all? choose your answer...

Explanation:

Step1: Recall energy - frequency relationship

The energy of a photon is given by $E = h
u$, where $h$ is Planck's constant and $
u$ is the frequency. Higher - frequency light has more energy. In the visible light spectrum, frequency increases from red to violet.

Step2: Compare yellow and orange light

Yellow light has a higher frequency than orange light in the visible spectrum. So, yellow light has more energy.

Step3: Compare red and violet light

Violet light has a higher frequency than red light. Higher - frequency light is associated with higher energy and higher temperature in the context of black - body radiation and light characteristics. So, violet light is hotter.

Step4: Identify the coolest light

Among the visible lights considered (red, orange, yellow, violet), red light has the lowest frequency. Since lower - frequency light has less energy and is cooler in this context, red light is the coolest.

Answer:

• Which light, yellow or orange, has more energy? Yellow
• Which light is hotter, red or violet? Violet
• Which light is the coolest of them all? Red