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In the first part of a question, we've been asked.
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The two loudspeakers next to each other produce sound waves as shown in our figure.
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How are these waves expected to interfere and for what reason? now, the waves in our given condition are to be destructively interfering since they are out of face.
00:31
In our next case, we are told that two waves of the same amplitude and wavelength meet.
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Now they interfere destructively.
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We need to determine the possible phase difference between the waves.
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Now the phase difference between the two waves given its destructive will be lambda by 2.
00:47
Accordingly option b will be the correct answer.
00:50
For a next case we have been out that which scientists favored the particle theory of light.
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So isaac newton was the scientist that favored the particle theory of light.
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Accordingly option c will be the correct answer.
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In our next statement we've been asked that how did huygens ' explanation of the refraction compared to newton's explanation of refraction? here we have to understand that hygans predicted that the light would slow down when it goes to a denser medium.
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But newton predicted just the opposite of that.
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That is the key difference between their theories.
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Accordingly, option d will be the correct answer.
01:45
For our next case, thomas young was the first scientist to demonstrate that light shows interference effects...