2. Show that the equation of a traveling wave given as y = a sin (kx - wt) may be rewritten in the
following forms (i) y = a sin k(x - vt)(ii) y = a sin
2π(x/ - xt) (iii) y = a sin w(x/v –t), and (iv) y =
a sin 27(x/2 - 1/T) where the symbols have their usual
meanings.
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Abeam of electrons with of wavelength of 7.5 x 10-6 m is incident on a pair of narrow rectangular slits separated by 0.75 mm. the resulting interference pattern is projected onto a screen 10.0 m from the slits. what is the separation of the interference maxima in the resulting interference pattern?

Why don't you see your reflection in water with waves or repples

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