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How do the blue star differ from the red star?
Blue stars are hotter, larger, and more luminous than red stars. They have shorter lifespans due to their high energy output. Red stars are cooler, smaller, and less luminous, and they have longer lifespans.
Which is hot a blue star or a red star and why?
All stars are hot. Blue stars are the hottest. The hotter a star is, the shorter the wavelength of light it emits. Blue light has a shorter wavelengths than most other colors.
What does a blue shift of the light from a star indicate?
When light shifts toward the blue end of the spectrum, it is shifting in the direction of shorter wavelengths. This happens when a luminous object, such as a star, is moving toward you. This motion tends to compress the waves which it emits. Stars that are moving away from the observer will instead exhibit a red shift. The waves are stretching out, because of the motion. And because the universe is expanding, red shifts are by far the most common.
What does a blue shift of light from a star indicate?
When light shifts toward the blue end of the spectrum, it is shifting in the direction of shorter wavelengths. This happens when a luminous object, such as a star, is moving toward you. This motion tends to compress the waves which it emits. Stars that are moving away from the observer will instead exhibit a red shift. The waves are stretching out, because of the motion. And because the universe is expanding, red shifts are by far the most common.
What makes a sunset red?
As the Sun gets lower in the sky, its light is passing through more of the atmosphere to reach you. Even more of the blue light is scattered, allowing the reds and yellows to pass straight through to your eyes.
In the light spectrum are red waves shorter than blue waves?
Red light waves are almost double the length of blue or violet light waves. Wavelength is inversely proportional to frequency; red light has a higher frequency than blue light.
What happens to light waves along the visible specturmmoving from red to violet A. they become longer B. they become shorter C. they remain constant D. they vary randomly?
B. They become shorter. As light waves move from red to violet along the visible spectrum, their wavelengths decrease, causing the light waves to become shorter.
Are the light waves reflecting off a red stop sign longer or shorter than the waves reflecting off a violet colored jacket Why?
The light waves reflecting off a red stop sign are longer than the waves reflecting off a violet colored jacket. This is because red light has a longer wavelength compared to violet light. The color of an object is determined by the wavelengths of light it reflects.
Are green wavelengths longer than orange wavelengths?
No, green wavelengths are shorter than orange wavelengths. In the electromagnetic spectrum, longer wavelengths correspond to colors such as red and orange, while shorter wavelengths correspond to colors like blue and green.
Which two waves lie at the end of the visible spectrum?
Ultraviolet (UV) and infrared waves lie at the end of the visible spectrum. UV waves have shorter wavelengths than violet light, while infrared waves have longer wavelengths than red light.
What bends more light waves with short wavelengths or light waves with long wavelenths?
Light waves with shorter wavelengths bend more compared to light waves with longer wavelengths when passing through a medium due to the phenomenon of dispersion. This is why we see rainbows, where shorter wavelengths (violet/blue) are bent more than longer wavelengths (red) when passing through water droplets.
What electromagnetic waves can humans not see?
Humans cannot see ultraviolet, infrared, or radio waves as they fall outside the visible spectrum of light. Ultraviolet waves have wavelengths shorter than violet light, while infrared waves have wavelengths longer than red light. Radio waves have even longer wavelengths.
Which type electromagnetic waves has slightly longer wavelengths than red light?
There are a few categories of electromagnetic with a shorter wavelength (higher frequency) than visible light. These include ultra-violet light, X-rays, and gamma rays.
What waves have the color spectrum known as ROYGBIV?
ROYGBIV refers to the colors of visible light in the electromagnetic spectrum. The waves that make up this color spectrum range from longer red waves to shorter violet waves. In order from longest to shortest wavelength: red, orange, yellow, green, blue, indigo, and violet.
Which waves have shorter wavelengths radio waves or xrays?
X-rays have shorter wavelengths than radio, heat, infra-red, visible light, and ultra-violet.
What is the diffrence between the waves that make up bright green light and dim red light?
The bright green light has a higher frequency (shorter wavelength) and a smaller amplitude than the dim red light.
The color of light is determined by the what of the light waves?
The color of light is determined by the wavelength of the light waves. Shorter wavelengths correspond to higher frequency light waves and colors like blue and violet, while longer wavelengths correspond to lower frequency light waves and colors like red and orange.
