If a wave from one slit of a Young's double-slit set-up arrives at a point on the screen one wavelength behind the wave from the other slit, what is observed at that point?
a. dark fringe
b. bright fringe
c. multi-colored fringe
d. gray fringe, neither dark nor bright
b
Physics & Space Science
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The hydrogen absorption lines are the strongest in ________ type stars.
A. A B. B C. O D. G
Physics & Space Science
State the two laws of equilibrium
Physics & Space Science
Resistors in Combination: What is the equivalent resistance in the circuit shown in the figure?
A. 80 ? B. 55 ? C. 50 ? D. 35 ?
Physics & Space Science
The interface between epoxy and glass fibers in fiberglass is a(n) _____________boundary.
Fill in the blank(s) with the appropriate word(s).
Physics & Space Science