An object is placed 100 cm in front of a diverging lens with a focal length of magnitude 25 cm. A converging lens having a focal length of magnitude 33.33 cm is placed 30 cm past the first lens. Where is the final image formed?
A) 3.0 meters before the second lens
B) 100 cm after the second lens
C) 30 cm after the second lens
D) 20 cm in front of the first lens
E) 3.0 cm before the second lens
B
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Two-Source Interference of Sound: A person stands between two speakers driven by the same source. Each speaker produces a tone with a frequency of 200 Hz on a day when the speed of sound is 330 m/s. The person is 1.65 m from one speaker and 4.95 m from the other. What type of interference does the person perceive?
A. constructive B. destructive C. both constructive and destructive D. neither constructive nor destructive
A monatomic ideal gas is compressed isobarically to one-third of its initial volume. The resulting pressure will be
A) three times as large as the initial value. B) equal to the initial value. C) more than three times as large as the initial value. D) equal to the initial value. E) impossible to predict on the basis of this data.
How are solar towers similar to and different from solar trough collectors?
What will be an ideal response?
When air contains as much water vapor as it can possibly hold for a given temperature, the air is at
A) capacity. B) optimum threshold. C) its evaporation point. D) sublimation point.