Physics Lab Apparatus 1 - Chandra Scientific Industries -csidua

Newtons Ring Apparatus

‘CSI’ for measuring the wave length of light by the reflections system a piece of glass plate angle in groove in the sides of a small wooden box at an angle of 45o inside back and a plane glass plate and lense 2″ dia. Plated on the base.
A sodium vapour lamp and transformer supplied separately.

Wooden Wedges

a)	Small, Sonometer type, Teak wood,
b)	Large 15 cm. high (approx)

Measuring Cylinder

Measuring Cylinder : 50ml 100ml 250 ml 500 ml
a)	Poly lab , plastic
b)	Soda glass
c)	Borosil

Geometrical Instruments

Brand	Chandra
Size	Large size ( for black board )
Material	Plastic
Color	White
Usage/Application	Black Board
Condition	New

	Geometrical Instruments set large size (for black board) made of plastic
a)	Good quality
b)	Very Superior quality, well finished. Thick

Transistor Characteristics Apparatus

Transistor Characteristics Apparatus: ‘CSI’ (Model No. TC-521)

For PNP & NPN
Two-in-one
This apparatus is used to verify INPUT, OUTPUT & TRANSFER Characteristics of PNP/NPN transistor in common emitter/base mode. It is complete unit provided will all components, regulated power supply, meters etc. to perform experiment.

FEATURES :
a) Built in continuously variable regulated power Supply
b) 4 Rectangular moving coil type meters are provided to monitor voltages & current.
c) Rugged construction, compact unit provided with self explainatory User’s Manual.
d) Special interconnection leads are provided having 4 mm plugs (with spring action for firm contact) 10 Nos.

Resonance Tube Apparatus

a)	Routine quality, tube dia 25mm *St-steel/Brass* N.P. with *St-steel/brass* reservior.
b)	Routine quality, tube dia 35mm *St-steel/Brass* N.P. with *St-steel/brass* reservior.
c)	*CSI’on heavy metal base fitted with levelling screws thick teak wood* board, 1 meter long fitted with *Brass tube 25mm* dia and brass reservoir, Superior quality
d)	*CSI’on heavy metal base fitted with levelling screws thick teak wood* board, 1 meter long fitted with *Brass tube 35mm* for loud sound of Echo & Brass reservoir. Extra superior quality

Wet & Dry Thermometer

a)	Fitted on acrylic screen printed Scales Routine quality
b)	Superior, Fitted on Seasoned wood polished Scale, with humidity chart
c)	*Dimple* brand: Mercury filled, round German white back thermometer mounted on anodised aluminium scale, fitted in plastic moulded cover and shade ditto as per “ZEAL” with hygrometric table for computation of relative humidity.
d)	Extra Superior *Zeal – Imported*
e)	Thermo-Hygrometer: *Digital, Imported*

Step Down Transformer

Input Voltage	220 volt A.C.
Current	1 AMP, 2 AMP, 3 AMP
Material	Metal body
Brand/Make	Chandra
Condition	New
Output volt	2-12 Volt A.C

Step down Transformer :

In metal case. input 220 volt A.C. out put 2-12 Volt A.C

Current 1 Amp

Current 2 Amp.

Current 3 Amp.

Vernier Calliper Digital

Digital Imported, well finished, Stainless Steel in Case.

Wave Motion Apparatus

‘CSI’ for demonstration longitudinal and transverse waves. Superior quality.

Boyle's Law Apparatus

‘CSI’ superior quality, open & closed type one meter long teak wood board on heavy metal base fitted with leveling screws. Without Mercury but complete with pressure rubber tubing & glass tubes.

Cathode Ray Oscilloscope

‘CSI’ Model CES-103. Single beam CRT 20 mV/Div. 2 MHz

Gold leaf Electroscope

a)	Routine quality
b)	Very Superior, Export quality in metal box.(origina gold leaves)

Windmill Model

Meter Bridge

(Carry Foster’s Bridge) Four Gap with terminals.

a)	Superior quality on ¾” compressed ply board, beautifully laminated fitted With brass strips.
b)	*‘CSI’* Very Superior quality, thick teak wood well polished
c)	*‘CSI’* Extra Superior Export quality. *thick teak* *wood* .Fitted with *thick Brass strip*.

Resistance Box

Resistance Box:DIAL TYPE . Four dials. ranges 1-10,000 ohms. Having dials of unit, tenths, hundreds & thousands ohms.
a)	Good quality. i) Constantan coil
	ii) Manganin coil
b)	*‘CSI’*make Accuracy 0.1% four dials of units, tenths, hundreds & thousands ohms range 1-10,000 ohms as good as ‘OSAW’ (Guaranteed for one year for any mechanical defects) i) Constantan coil
	ii) Manganin coil
	*Resistance Box: DIAL TYPE. Five dials* range 1-1,00,000 ohms. ‘CSI’ make Accuracy 0.1% (as good as OSAW) with dials of units, tenth, hundreds, thousand & ten thousands.
	i)Constantan coil
	ii)Manganin coil

Magnetic Compass

a)	Both side glass 18 mm. dia., Extra superior export quality.
b)	Magnetic Compass : One sick glass, one side aluminium Dia 25mm 38mm 50mm 75mm 100mm Rate
132	Magnetic Needle :
a)	Routine, on Plastic stand.
b)	Superior, On Aluminium stand.

Sonometer

Sonometer: *‘CSI’* Superior quality, *Teak wood, well polished* fitted with meter scale, 2 wires & 2 sliding bridges. without weights.
a)	Size 100 x 10 cm.
b)	Size 100 x 15 cm.

Mirrors and Lenses

Mirror Convex or concave ‘GOWLAND’ type optically ture :

Focal length 10, 15, 20, 25, 30 cm

Dia 50 60 75 100 150 mm

Rate

Lense Concave : Optically ture

Dia 2″ 3″

F.L. 5 cm. exact

F.L. 10 cm.

F.L. 15–30 cm.

F.L. 50, 100 cm

Lense Convex : Optically true

Dia. 2″ 3″

F.L. 5 cm. exact

F.L. 10 cm.

F.L. 15-30 cm.

F.L. 50. 100 cm

Sodium Vapour Lamp

35 watt. Imported

a)	Complete with Transformer
b)	Lamp Only ( *spare)*.
c)	Transformer only ( *spare)*.

Mercury Vapour Lamp

125 watt

a)	Complete with Choke.
b)	Lamp Only ( *spare)*.
c)	Choke only ( *spare)*.

Newtons Law of cooling

Newton‘s Law of cooling apparatus : ‘CSI’ make

Double walled, single calorimeter

Maximum & Minimum Thermometer

a)	Good quality
b)	Superior Accurate, on wooden plate
c)	*Zeal – Imported* make

Aneroid Barometer

a)	Demonstration type, transparent on all sides
b)	German type. Wall pattern.

Screw Gauge

i)	*Demonstration type*, large all metal
ii)a)	With ratched steel rod, Good quality Size 10mm 15mm 20mm 25mm Rate
b)	Superior with *Stainless-Steel* rod Size 10mm 15mm 20mm 25mm Rate
c)	Extra Superior, Export Quality Stainless Steel *PARCO*. Size 15mm
d)	*Moore &Wright Pattern* Japanese type *Stainless-Steel* Screw *with lock* arrangement in box. Size 25mm

Resistance Box (Plug Type)

Brass blocks. Interchangeable plugs. bakelite top, fitted in teak wood well polished case ‘CSI’ accuracy 0.1%.Brass Blocks (Guaranteed for any mechanical defect).

Range

1-50 ohms

1-100 ohms

1-500 ohms

1-1,000 ohms

1-5,000 ohms

PN Junction & Zener Diode Characteristics Apparatus

CSI (model no. Dc-641) for forward, reverse & zener- combined

three-in-one

this apparatus find application to verify :

V-i characteristics of p-n junction diode. (silicon or germanium) in forward and reverse bias.
V-i characteristics of zener diode when connected in reverse bias.

features :

(a)built-in power supply.

(b)one rectangular voltmeter and one milli-ammeter (both meters are dual range) to monitor voltage & current.

(c)two p-n junction diodes, one in forward and other in reverse bias.

(d)one zener diode.

(e)special interconnection lead-5 no. S.

(f)special feature: p-n junction/zener diodes are mounted from outside of panel so that they are visible from outside to students as well as easy to replace when teachers are interested to use any other diode.

Double Inclined Plane

(Galileo’s Experiment): ‘CSI’ Superior teak wood. Well polished. Complete with two wooden blocks & one spherical steel ball 2.5cm/dia. Fitted with two graduated arc to adjust at any angle.

Bar Magnet

Dimensions	50×15 mm
Thickness	3 mm
Shape	Bar (Block)
Material	Alnico
Magnet Grade	Alnico 3
Dimensional Tolerance	+-0.15 mm
Maximum Working Temperature	525 Deg. C
Magnetization Direction	Multiple Poles

Bar magnet :Alnico (Strong) Bar Magnets (very powerful as good as english magnets).

size : 2″ , 3″

Geometrical Models & Figures

Wooden, Set of 12. Cube, Square, Hexagonal, Triangle, Prism, Pyramid, Cylinder, cone, Sphere etc.

U Shape Magnet

‘u’ shape magnet: – ‘alnico’ powerful,

size: 2″, 3″, 4″

Crocodile Clip

a)	Small, Routine quality
b)	Small, Superior quality
c)	Big Size (Battery clip)

Spring Balance

Spring Balance : 100gm. 250gm. 500gm. 1000gms.
Extra Superior, Round transparent acrylic tube.

Drawing Board

(a)	Drawing Board: Soft wood size. 18″x12″
b)	Drawing Board: Soft wood size. 24″x16″

Soldering Wire

a)	Routine quality
b)	Superior quality. Pure 60/40

Prism

Prism : For Spectrometer Size 25 x 25 32 x 32 38x38mm.
a)	Crown glass
b)	Flint glass
i)	Prism Hollow:. Made from ordinary *glass plates*, properly cemented with optical cement. a)38x38mm b)50x50mm
ii)	Made from *Solid glass blocks,* sides plane plates for Spectrometer work. In box. a) 38 x 38 x 25 mm b) 38 x 38 x 38 mm. c) 50 x 50 x 50 mm
	Fresnel’s Bi-Prism
a)	Size 40 x 32 mm
b)	Size 50 x 40 mm.

Hand Plier

Plier: Size 8″
a)	Good quality
b)	Superior, heav
c)	*Taparia*