Recent content by junfan02

Could you please suggest me a reference so I can read more about it?

So the two things aren't mutually exclusive?

What happens if the screen in young's double slit experiment is replaced with a photoelectric material? Electrons should be emitted only from regions where constructive interference occurs! Doesn't that mean in this case light will depic both wave and particle nature? That is clearly not...

Thanks a lot.. That surely was helpful!

How wud we know which spectral line has shifted how much, if there are lines presnt all over...

A continuous range of frequecies shifted due to doppler effect should still result in a continuous range of frequencies, so how to distinguish and measure the shift? Like I am saying if blue shifted, the infrared will become red, red becomes orange... ... Violet becomrs ultraviolet.. So?

Light from distant stars must consist of all wavelengths not only the spectral lines, shouldn't they?

No.. Spectral lines of same elements will. obviously be in the same wavelength!

But how do we know before hand that all the bodies radiate in the same wavelength?

I have read that, the light from a distant moving object is tested for doppler shift to calculate its velocity. My question is, we can only lay our hands on the modified frequency, not the original frequency. So how to calculate the doppler shift from that?

Thank u very much!

I am a bit confused about something! Exactly under what kind of transformations are scalars invariant in the domain of classical mechanics? The fact which is disturbing me is, say we have a moving body of certain kinetic energy in a certain inertial frame of ref, and then we choose to.observe...

Thanks a lot! Will give it a try, please be there if I am stuck somewhere..

The total change in entropy obviously has to be zero since this is a reversible process!

dQ amount of heat taken away from the aource reduces its temperature by dQ/c. Assuming c to be the common heat capacity. And the increase in temperature of the sink for this cycle is T2*dQ/(T1*c) How do I proceed after this?