Are These Physics True or False Answers Correct?

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The discussion revolves around a series of true or false physics questions related to wave behavior, interference patterns, and properties of sound and light. Key points include the relationship between opening size and diffraction, the bending of sound frequencies, and the characteristics of nodal lines in interference patterns. Participants emphasize the importance of providing reasoning for answers rather than simply stating them. Additionally, there is a focus on understanding the nature of light waves and their polarization. Overall, the thread encourages critical thinking and explanation in physics problem-solving.
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Physics Questions HELP!

Homework Statement



Questions are True or False I have my Answers but not sure if they are right.


Homework Equations





The Attempt at a Solution




Marks: 1 As the size of an opening decreases, the amount of diffraction increases. Answer: True False






2
Marks: 1 Higher frequencies of sound bend through a doorway more easily. Answer: True False






3
Marks: 1 Decreasing the wavelength of the sources causes nodal lines in a two point interference pattern to move closer together. Answer: True False






4
Marks: 1 The secondary maxima in single slit interference are narrower and dimmer than the central maximum. Answer: True False






5
Marks: 1 Destructive interference occurs when the resultant waveform has a smaller amplitude than each individual wave. Answer: True False






6
Marks: 1 Light must be a longitudinal wave since it can be polarized. Answer: True False






7
Marks: 1 Nodal lines occur at points of continual constuctive interference. Answer: True False






8
Marks: 1 A wave traveling along a spring with a wavelength of 2.0 m eneters a second spring where the wavelength becomes 3.0 m. If the speed in the first spring was 4.4 m/s, the speed of the wave in the second spring is:Answer: a. 6.6 m/s
b. 2.9 m/s
c. 0.73 m/s
d. 2.2 m/s






9
Marks: 1 The difference in path lengths from a point on a given nodal line to the two sources in a two point source interference pattern is directly proportional to the wavelength of the sources. Answer: True False






10
Marks: 1 In light, longer wavelengths refract less than shorter wavelengths. Answer: True False
 
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No can do mate, you must show us your reasoning at least (some of YOUR answers would be nice too), we can't just blanketly hand out the answers!
 
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