What other measurement is required to calculate the wavelength?
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plz do both
Transcribed Image Text:12. In a two-point source interference pattern in a ripple tank, a point is one wavelength farther from one source
than the other. If the two sources are in phase, then there is
a. destructive interference at this point
b. constructive interference at this point
C. both constructive and destructive interference simultaneously
d. neither constructive nor destructive interference at this point
e. no interaction between the two waves at this point
13. A student wishes to perform Young's double-slit experiment to measure the wavelength of light of a given
source. The student has measured the average distance between adjacent dark bands and the distance from
the slits to the screen. What other measurement is required to calculate the wavelength?
a. the location of the central bright line
b. the distance between the source and the slits
C. the angle between the central bright line and first nodal line
d. the distance separating the two slits
e. the distance between the centre of the two slits and any given dark band
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