| 336 Reflection of Light Appartus: |
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| Reflection of Light Appartus: |
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| 337 Reflection of Sound Apparatus : |
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| Reflection of Sound Apparatus : |
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Pin Hole Camera : Wooden, nicely polished, box Form. |
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| Periscope : Wooden, nicely polished. |
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| 340 Angular Plane Mirror : |
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340 Angular Plane Mirror : Two hinged mirrors mounted on wooden base with graduated scale. |
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Model Plane Mirror : Set of two in wooden frame silliding on wooden base. |
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Chemical balance : ( Semi Analytical ) 140 mm long beam with 100 notches graduations for rider attachement. With 7 stone agates, fitted in nicely polished teak wood case with sunmica base. Capacity 200gm, sensitivity 1/10 mg. |
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| 344 Triple Beam Balance : |
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Triple Beam Balance : for direct reading, with sliding rider weights
A. Capacity 111 gm.
B. Capacity 310 gm |
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| 345 Searls Thermal Conductivity Apparatus : |
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Searls Thermal Conductivity Apparatus : It consists of a copper rod with its one end surrounded with a steam jacket for heating it from a boiler and other end is kept cool by a stream of water floating through a spiral tube fitted to that, without thermometers
A. With 30 cmx 2.5 cm copper rod.
B. With 30 cmx 1.8 cm copper rod. |
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| 346 Conductivity Apparatus lee's and Chariton's : |
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Conductivity Apparatus lee’s and Chariton’s :
A. With heavy moulded brass C. P. parts superior.
B. Light pattern, regular quality |
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