Homework Statement
When the internal resistance is large in comparison to the external resistance, the terminal potential difference falls to a small value. This is used to make high voltage supplies safe for use in a laboratory. Explain how this makes the supply safe.
Homework Equations...
Ok
But if the ratio of red light intensity to blue light intensity was higher in the light from a distant galaxy...
when compared to the ratio of red light intensity to blue light intensity in the light from a nearby galaxy...
why do we need to bother about the spectral lines.
Surely the...
Thanks phinds.
If I were to be sitting on the Hubble Telescope looking at these distant galaxies with a telescope (which doesn't disperse the light)...would these galaxies appear red in colour? because they have more long wavelength visible light?
Also, can someone point me to a graph that...
Please can someone help confirm this
White light is a mixture of light with different wavelengths. A percentage of the white light is light with long wavelengths and a percentage of white light is light with short wavelengths.
When scientists look at the light from distant galaxies using a...