1185. Ultrasonic Diffraction Apparatus
The instrument is designed to give accurate and best results. A high power RF Oscillator, and special type High Resolving Spectrometer with micrometer Eye Piece is designed for this experiment.
(a) Quartz Crystal with Tank.
(b) RF Oscilltor to oscillate the crystal.
(c) High Resolving Spectrometer with
micrometer Eye Piece.

RAC CHEMICAL THERMOMETERS

1186. Thermometer Celsius (Centigrade) Scale engraved stem, length 300 mm app. enamelled back, mercury filled in case. Pack of 10 Pcs
a) -10 to 50 x 1/2°C.
b) -10 to 50 x 1°C.
c) -10 to 110 x 1/2°C.
d) -10 to 110 x 1°C .
e) -5 to 150 x 1 ° C.
f) -5 to 200 x 1°C.
g) -0-250 x 1
h) --0 to 360 x 1 °C.
i) -0 to 400 x 1°C.

1187. Thermometer Fahrenheit : Scale engraved length 300 mm. enamelled back, mercury filled Pack of 10 Pc.
a) 120 x 1°F (b) 220x 1°F
c) 400 x 2cF (d) 600 x 2°F
e) 800 x 2°F

1188. Thermometer: Reaumur scale, engraved stem, length 300 mm, enamelled back mercury filled, in case, Range 80 x 1 ° R Pack of 10 Pc.

1189. Clinical Thermometer:
Engraved stem, enamelled back. Range 94°E to 108° F or 35° to 43°C in plastic case.

1190. Maximum and Minimum Thermometer:
Sixes pattern wall mounting. Spirit in glass thermometer with mercury indicating thread and two cursors mounted on dual scale, range-22to 55 x 1°C and 10to 130x 2°F in metal frame, complete with magnet for resetting.

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