Elements of natural philosophy (Volume 2-3) (1850)
Bartlett, W. H. C. (William Holms Chambers), 1804-1893 · New York : Barnes · leaf 299
hich,(if we abstract the very small difference in the in-terval between the glasses at the points where they re-spectively pass,) will have gone through different routesof precisely equal length. These two waves will be, 1st. One which passes di-rectly through the firstplate A i?, equal to £,… … ELEMENTS OF OPTICS. 291 at the first surface it is reflected again and passes the whole system EF + F G + GII, equal to 2 t + i\ 0r Explanation; upon the whole, it has travelled over 4 t + 2 i. 2d. Another portion proceeds directly through thewhole A B + B O + Cd, equal to 2 t + i, is reflected…
Mechanics · Acoustics · Optics
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