If the yellow light is a pure light of a single wavelength, and the green surface only reflects light in the wavelength range of green, the object will appear black. (And also all the red and blue wavelengths it generally reflects that it finds amongst the component wavelengths of the yellow light.)

For example, a green object appears black in any other light than green (or white which contains green) because there is no green light shining on it to reflect into your eyes….Coloured light.

Colors of Objects The wavelengths that are reflected determine the color that an object appears to the human eye. For example, the leaves appear green because they reflect green light and absorb light of other wavelengths.

When a light wave with a single frequency strikes an object, a number of things could happen. The light wave could be absorbed by the object, in which case its energy is converted to heat. The light wave could be reflected by the object. And the light wave could be transmitted by the object.

Answer. The amount of refraction increases as the wavelength of light decreases. Shorter wavelengths of light – higher frequencies – (violet and blue) are slowed down more and consequently experience more bending than do the longer wavelengths – lower frequencies – (orange and red).

Red light has lower frequency, longer wavelength and less energy. Blue light has higher frequency, shorter wavelength and more energy.

This diagram shows the relative wavelengths of blue light and red light waves. Blue light has shorter waves, with wavelengths between about 450 and 495 nanometers. Red light has longer waves, with wavelengths around 620 to 750 nm. Blue light has a higher frequency and carries more energy than red light.

spectrum” that can be seen by the human eye. Light is made up of electromagnetic particles that travel in waves. These waves emit energy, and range in length and strength. Blue light has a very short wavelength, and so produces a higher amount of energy.

Gases and particles in Earth’s atmosphere scatter sunlight in all directions. Blue light is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.

Yes, they might have the same energy. If light is defined by power intensity then all colors of same intensity have the same energy if consumed at the same length of time. The only difference is that light of shorter wavelength (into the blue and violet) consists of fewer photons, thus the energy per photon is higher.

This is because different colors of light travel at *different speeds* in the glass. Blue light travels slightly slower in glass than red light, so it bends a sharper angle when it enters the glass from air. In physics, we say the glass has a higher refractive index for blue light than red light.

Blue light moves faster than green light.

Since both red and blue light travel at the same speed, you would find more blue waves passing the vertical line each second than red waves because the blue waves are closer together.