Unpolarized light of intensity 12 W/m^2 passes through a first polaroid filter and subsequently passes through a second filter with axes rotated by theta = 52 degrees relative to the first filter. What is the intensity of the light finally making it through both filters?
Question options:
12 W/m^2 |
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6.0 W/m^2 |
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4.5 W/m^2 |
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2.3 W/m^2 |
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9.3 W/m^2 |
Question
What is the strength of the electric field at the exact midpoint between charges +5.0 nC and -5.0 nC which are separated by 10. cm?
Question options:
1.8 x 10^4 N/C |
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3.6 x 10^4 N/C |
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none of these |
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9.0 x 10^3 N/c |
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7.2 x 10^4 N/C |
Question
A skydiver is moving toward the Earth at 56 m/s (terminal velocity) while holding a loud tone generator producing sinusoidal sound at 1.2 kHz. Her friend is on the ground observing everything. What frequency does the stationary (and safe) observer register on the ground? [Take the speed of sound to be 343 m/s].
Question options:
1.4 kHz |
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1.6 kHz |
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1.8 kHz |
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none of these |
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1.2 kHz |
Question
Charges q_1 = 2.00 micro C and q_2 = 200. micro C are nearby one another. Which one exerts a greater force on the other?
Question options:
q_1 and q_2 exert equal but opposite forces on one another |
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q_1 and q_2 exert exactly the same force on one another |
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q_2 exerts the greater force |
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q_1 exerts the greater force |
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the answer depends upon how far apart they are |
Unpolarized light of intensity 12 W/m^2 passes through a first polaroid filter and subsequently passes through...
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