Used Equipment

A sodium vapor lamp emits light waves with a wavelength of 3.80 X 10^-7 m. What is the frequency of the waves?

a sodium vapor lamp emits light waves with a wavelength of 3.80 X 10^-7 m. What is the frequency of the waves? (c = 3.0 x 10^8 m/s)

a. 7.9 10^14 Hz
b. 114 Hz
c. 1.3 X 10^-15 Hz
d. 3.8 X 10^7 z

a)7.894 X 10^14 Hz
f=c/wavelength

1896 SUN VAPOR STREET LIGHT CO LETTERHEAD CANTON OH OHIO MANUFACTURER ST LAMPS $3.99

MV100 DX MED 100W/A23 Mercury Vapor Bulb Lamp $4.72

100W 100 watt ED17 HID Mercury Vapor Light bulb Lamp $4.72

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MV100 DX-MED 100W E26/Medium – ED17 Mercury Vapor Bulb Lamp $5.25

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H39KC-175/DX 175 Watt Sylvania Mercury Vapor Lamp – Tested Used $7.50

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Peter Cooper Hewitt,1861-1921,invented first mercury-vapor lamp,inventor $8.99

1965 print Ad for Hanovia Photochemistry Vapor Arc Lamps advertisement $8.99

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Sylvania Silver-White Mercury-Vapor Lamp lighting 1958 print Ad advertisement $9.99

GE General Electric HR100DX38 Mercury Vapor HID Lamp $10.00

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GE Multi-Vapor Metal Halide 175W Lamp 47760 MVR175/U $11.95

GE Multi-Vapor Lamp MVR175/U $11.95

Philips H39KC-175/DX 175 Watt Deluxe White Mercury Vapor Bulb Lamp $11.99

GE MULTI-VAPOR LAMP 100 WATT MODEL MXR100/U/MED/0 100 WATT $11.99

Mercury Vapor Lamp HR175DX/TU 175 watts Mogul Base $12.00

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GE Multi Vapor Lamp Light Bulb 250 Watt MVR250/U $12.60

NEW IN PACKAGE GENERAL ELECTRIC MVR100/C/U/MED MULTI-VAPOR LAMP $12.99

PHILIPS H336L-400/DX MERCURY VAPOR LAMP, LIGHT BULB, MOGUL BASE, WHITE – NEW $13.30

Self-Ballasted Mercury Vapor Lamp 160W ED23.5 Med Base $13.90

Self-Ballasted Mercury Vapor Lamp 160W ED23.5 Med Base $13.90

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Self-Ballasted Mercury Vapor Lamp 250W ED28 Mogul Base $13.90

Philips H43AV-75/DX 75 Watt HID Mercury Vapor Lamp Medium Coated Bulb $13.99

1979 General Electric Multi-Vapor Watt-Miser Lamps Ad $13.99

New Osram Sylvania M400/U Metal Halide Multi-Vapor Lamp $14.00

Bicycle Globe Vapor Lamp Light Antique 1896 Cycling Ad Chicago $14.95

GE 70W Multi-Vapor Lamp Bulb MXR70 $14.99

***NEW*** GE MULTI-VAPOR LAMP MVR175/U/MED 175W $14.99

Vintage Vapo Cresolene,Kerosene,Oil Lamp,Light,Miniature,Vicks Use Breathe Vapor $15.00

GE MVR175 Multi-Vapor Quartz Metal Halide Lamp Light Bulb 175 Watt $15.00

NEW GE MULTI-VAPOR LAMP 250 WATTS $15.00

H37KB-250 Mercury Vapor Lamp $15.75

NEW 250W MERCURY VAPOR LAMP MOGUL BASE 3900K (DELUX WHITE) LIGHT BULB $15.80

GE Multi-Vapor 1000 W Lamp Metal Halide MVR 1000 N55 $15.96

GE Multi-Vapor Lamp MVR360 BULB Commercial NEW IN PACKAGE $15.99

GE MVR 175/U Multi-Vapor Lamp (shelf 111-ak) $16.07

Designers Edge L-789 Mercury Vapor 175-Watt Mogul Base Lamp $16.34

GE Multi-Vapor Lamp 250W MVR250/VBU/PA $16.99

NEW 400W MERCURY VAPOR LAMP MOGUL BASE FROSTED LIGHT BULB $17.80

GE MULTI-VAPOR LAMP 1000WATT $17.99

NEW GE MULTI-VAPOR LAMP 400 WATTS $18.00

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Brand New GE Multi Vapor Lamp Light bulb, Metal Halide 400w watt MVR400/U $18.95

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Designers Edge L-1707 One-Light Incandescent Weather Tight Industrial Light $20.39 …

Lights Of America #9166B 65W Fluorescent Replacement Bulb $9.99 65W Fluorex Replacement Bulb, Mogul Base, 6500 Kelvin, 84=CRI, For Use In All 65W Fluorex Security Lighting Fixtures, Models 9165, 9166 and 9266, True Values 762930, 762989 and 762997 Respectively….

Cooper Lighting 800-0713 Lens Refractor $9.43 Replacement for model No. NH1204M security fixture….

Vicks UV 99.999% Germ Free Humidifier $79.99 Vicks UV GermFree HumidifierHumidifiers are an important nursery item to assist with a child’s breathing during the cold and flu season and protect from dry skin, chapped lips, and nose bleeds.  Overall, humidifiers help children sleep easier at night. Pure, sanitized warm mist—kills up to 99.999% of germs, mold, and bacteria in the water Worry-free, healthful moisture for y…

Vicks 1.5 Gallon Vaporizer with Night-Light $13.53 Model V150SG. Up to 96% bacteria-free steam (Intertek-ETL Test Report 3120389-COL-001. Quiet operation won’t disturb your sleep. Large nightlight to locate vaporizer in a dark room. Protective Steam Guard design lowers the outlet stream temperature by 20% and helps keep hands away from direct steam UL listed. Made in USA….

PREMIUM POWER PRODUCTS 23311153A-ER RPTV LAMP (FOR TOSHIBA(R) DLP TVS; REPLACES 23311153A D-95 & $66.55 PLASTIC HOUSING TO FIT INTO PROJECTOREASY INSTALLATION REQUIRE NO RE-WIRING6-MONTH WARRANTY4000 HOURS LAMP LIFE;COMPATIBLE WITH TOSHIBA(R) 46HM15 46HM95 46HMX85 52HM85 52HMX85 52HMX95 56HM195 56MX195 62HM15A 62HM195 62HM85 62HMX85 62HMX95 62MX195 72HM195 & 72MX195REPLACES ORIGINAL PART NUMBERS 23311153A D-95 & D-95-LMPShipping Dimensions : 10.12in X 8.27in X 7.45inEstimated Shipping Weight : 3.756…

Lumicon 1 1/4 Deep-Sky Filter for 1.25 inches $99.95 The Lumicon Deep-Sky Filter is THE foremost broadband filter efficiently blocking ALL mercury-vapor and high & low pressure sodium-vapor lamp light, neon lights and airglow, while allowing the rest of the visible spectrum through. The superior contrast gain between the black background and the object you’re viewing allows you to view galaxies, nebula, star clusters, dusty comets, etc. wonderfully …

Rosco Cinegel Urban Vapor, 20 x 24 Sheet of Light Converting Material, Creates the Reddish-Orange Appearance of Sodium Vapor Streetlights $6.95 The Urban Vapor cinegel creates the visual reddish-orange appearance of Sodium Vapor streetlights, without the green content found in actual Sodium Vapor sources. The formula was created by gaffer Dayton Nietert to light his Eiffel Tower set on “Rush Hour 3″. Manufactured with Cinegel’s standard deep dyed polyester technique….

GE 42729 250-Watt Multi-Vapor Quartz Metal Halide Mogul Light Bulb, 1-Pack $9.50 250 watt ED28 Mogul Screw (E39) Base 4,200K Clear Multi-Vapor Quartz Metal Halide HID GE Light Bulb (Enclosed Fixtures Only)…