Respuesta :
The distance between fringes is 3.4cm.
Solution:
Let's do the simple way
Small/Big = Small/Big
l/d = (Distance between fringes)/(Distance to screen)
(Distance between fringes) = (Distance to screen)l/d = (2.6 m)(656x10-9 m)/(.050 x10-3) = 0.034112 m = 3.4 cm
Exact method
1l = dsinq
q = sin-1(l/d) = sin-1(656x10-9 m/.050x10-3 m) = 0.7517o
Distance between fringes = (2.6 m)tan(0.7517o) = 0.034114936 m = 3.4 cm
The two methods are very close for small angles.
What is wavelength?
- The distance over which a periodic wave's shape repeats is known as the wavelength in physics.
- It is a property of both traveling waves and standing waves as well as other spatial wave patterns.
- It is the distance between two successive corresponding locations of the same phase on the wave, such as two nearby crests, troughs, or zero crossings.
- The spatial frequency is the reciprocal of wavelength.
- The Greek letter lambda () is frequently used to represent wavelength.
What is the purpose of wavelength?
- The separation between each wave's peak and the next in the series, or the space between each trough.
- It serves as one of the "yardsticks" for calculating radiation levels.
Learn more about wavelength here:
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