This photo shows the diffraction pattern in the shadow of a penny. If light bends around the edges of a penny to produce a bright spot exactly at the center, why are there no bright spots in places other than the center?
a. There are additional spots, but the one in the center is brightest.
b. The penny acts like a lens and the bright spot is simply a tiny image of the penny.
c. The center is equidistant from all parts of the penny's edge, therefore waves arrive "in step" at the center to add and produce a bright spot, but arrive out of step and cancel elsewhere.
d. Superposition and interference of waves from the light occurs only at the center.
e. The bright spot is merely an optical illusion.
c
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A) 54 degrees C. B) 300 degrees C. C) 327 degrees C. D) 600 degrees C. E) none of the above
All three types of particles found in atoms are electrically charged
a. True b. False Indicate whether the statement is true or false
In an isochoric process where the pressure increases from to , does the internal energy of the system increase or decrease and does the temperature increase or decrease?
a. The internal energy increases and the temperature decreases. b. The internal energy increases and the temperature increases. c. The internal energy decreases and the temperature decreases. d. The internal energy decreases and the temperature increases.
Oxygen accounts for approximately ________ % of the air that surrounds us.
What will be an ideal response?