If you tried to use a diverging lens as a magnifier by placing the object at the focal point, what type of image would be produced?
A. Upright and larger than the object
B. Inverted and larger than the object
C. Inverted and smaller than the object
D. Upright and smaller than the object
Ans: D. Upright and smaller than the object
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How can a single narrow slit produce an interference pattern?
A. The edges cause diffraction B. Each point on the wave front acts as a wavelet source C. It can't D. This is still unexplained.
The Sun's energy comes from ________.
A. its rotation slowing down B. the conversion of mass into energy C. the release of magnetic energy D. meteors and asteroids striking its surface
When observing an object, such as a space ship that is moving very quickly relative to you, the length of objects on that object will appear to be:
A) longer than when they are at rest. B) the same length as when they are at rest. C) shorter than when they are at rest. D) narrower than when they are at rest. E) wider than when they are at rest.
A string with a fixed frequency vibrator at one end is undergoing resonance with 4 antinodes when under tension T1 . When the tension is slowly increased the resonance condition disappears until tension T2 is reached, there being no resonances occurring between these two tensions. How many antinodes are there in this new resonance?
a. 3 b. 4, since all resonances in this situation have the same number of nodes c. 5 d. 2, since resonances only involve whole wavelengths e. 6, since resonances only involve whole wavelength