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A first-order bright fringe is observed at an angle of 2.5 degrees when light with a wavelength of 750 nm passes through two narrow slits. How far apart (in nanometers) are the two slits? Round your answer to the nearest whole number (no decimals), and do NOT include a unit in your answer.

Question

A first-order bright fringe is observed at an angle of 2.5 degrees when light with a wavelength of 750 nm passes through two narrow slits. How far apart (in nanometers) are the two slits? Round your answer to the nearest whole number (no decimals), and do NOT include a unit in your answer.

A first-order bright fringe is observed at an angle of 2.5 degrees when light with a wavelength of 750 nm passes through two narrow slits. How far apart (in nanometers) are the two slits? Round your answer to the nearest whole number (no decimals), and do NOT include a unit in your answer.

Solution

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GideonProfessional · Tutor for 6 years

Answer

\[ d = \frac{\lambda}{\sin(\theta)} \]<br /><br />\[ d = \frac{750 \, \text{nm}}{\sin(2.5^\circ)} \]<br /><br />\[ d \approx 17200 \]<br /><br />17200
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