Name a physical quantity used to measure optical density of a Medium

AI Thread Summary
The discussion revolves around the measurement of optical density in a medium, with a focus on electromagnetic waves and induced electromotive force (e.m.f) in different loop shapes. It highlights the differences in e.m.f induced in rectangular and circular loops as they exit a magnetic field. Additionally, participants suggest that electric and magnetic fields are key physical quantities associated with electromagnetic waves. The conversation emphasizes the importance of understanding these concepts in the context of physics. Overall, the thread seeks clarification on specific physical quantities related to optical density and wave definitions.
devrudra07
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1.A rectangular loop and a Circular loop are moving out of a uniform magnetic field to a field free region with a constant velocity V.In which loop the induced e.m.f is constant during the motion of the loop.

2.Name two Physical quantifies other than velocity,wavelength and C,associated with electromagnetic waves.

3.Name a physical quantity used to measure optical density of a Medium.

:smile:
 
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In a rectangular loop what is the overall emf induced? In a circular coil, what is the emf induced?

2) What do you think defines waves?
 
rock.freak667 said:
In a rectangular loop what is the overall emf induced? In a circular coil, what is the emf induced?

2) What do you think defines waves?

i've given the complete question.nothing more to it.
i guess the ans to second one is electric and magnetic field.just checking
 

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