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A He–Ne laser beam is reflected from the surface of a CD onto a wall. The brightest spot is the reflected beam at an angle equal to the angle of incidence. However, fringes are also observed. If the wall is 1.50 m from the CD, and the first fringe is 0.600 m from the central maximum, what is the spacing of grooves on the CD?

$0.79 \times 10^{-6} \mathrm{m}$

Physics 103

Chapter 27

Wave Optics

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Lectures

02:51

In physics, wave optics is…

10:02

Interference is a phenomen…

05:06

A He-Ne laser beam is refl…

00:47

Measuring Wavelengths with…

04:56

A laser beam of wavelength…

03:30

$\bullet$$\bullet$ CDs and…

01:13

CD Reflection The rows of …

00:43

A laser beam is incident o…

02:53

Light at 633 nm from a hel…

01:53

Find the height $h$ of the…

00:58

Directing a Laser Beam A l…

08:34

A beam of laser light of w…

0:00

Two plane mirrors intersec…

05:00

Two thin parallel slits th…

01:56

$\bullet$ Two plane mirror…

02:13

03:55

The drawing shows a laser …

03:21

$\bullet$ A laser beam of …

00:46

Il A laser beam is inciden…

A laser beam $(\lambda=632…

A parallel beam of light e…

03:24

A light bulb is 3.00 m fro…

we can find the spacing between the grows home the CD by first finding the angle. So to find in Hui right to think that I think that is equal to preventive Lower Best Andy's we have here the 0.6 derided by 1.5 from here solving for theta Excuse us the canyon worse off. Um, this number dividing 0.6 over 1.5 which gives a zero point for then, uh, taking tanking. Worse off zero point forward gives us 21 pour into eight degrees, then writing a equation DIY science data Do you sign? Data is equal Thio m linda that the distance for fuss to maximum will be Linda divided by the scientific data for the first maximum musical The one Oh, so we have a lambda given that is 6 32 0.8 enemy just times when ordering two meters times into the power minus nine divided by the sine theta sign off 21 21.8 You commies, Uh, this gives us a distance or for 1.7 oh times 10 to the power minus six meters. And, uh, from here, Then we confined dispensing, which is a 1700. The distance off spacing is 17 had written on a meter

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In physics, wave optics is the study of the behavior of light, or other elec…

Interference is a phenomenon in which two waves superpose to form a resultan…

A He-Ne laser beam is reflected from the surface of a CD onto a wall. The br…

Measuring Wavelengths with a CD. A laser beasm of wavelength $\lambda=632.8 …

A laser beam of wavelength $\lambda$ = 632.8 nm shines at normal incidence o…

$\bullet$$\bullet$ CDs and DVDs as diffraction gratings. A laser beam of…

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Find the height $h$ of the pits on a CD (Fig. $25.6 \mathrm{a}$ ). When the …

Directing a Laser Beam A laser beam is to be directed through a small hole i…

A beam of laser light of wavelength 632.8 $\mathrm{nm}$ has a circular cross…

Two plane mirrors intersect at right angles. A laser beam strikes the first …

Two thin parallel slits that are 0.0116 mm apart are illuminated by a laser …

$\bullet$ Two plane mirrors intersect at right angles. A laser beam strikes …

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