School Science Lab Light and Optics

SPECTROMETRY KIT SK001

 

Exp-1 To determine the Refractive index of the material of Prism using Sodium Light.
Exp-2 To determine the Dispersion power of a prism.
Exp-3 To determine the resolving power of the prism.
Exp-4 To determine the wavelength of Sodium Light using a plane diffraction Grating.
Exp-5 To determine the Resolving Power of a plane diffraction grating.
PHYSICS, Class XII, Part-2,Chapter-9, Ray optics & optical instruments.

The theory of the prism spectrometer indicates that a spectrum of maximum definition is obtained when the angular deviation of a light ray passing through the prism is a minimum.

Specification of Spectrometer :
Scale : Brass scale, Dia 150mm.
Objective : Achromatic, focal length 178mm, aperture 32mm
Slit : German silver
Reticle : 90° cross on glass
Least count : 1 minute
Base : Aluminium Casting

Scope of Supply:

Cat. No. Item Name Qty.
SL274 Spectrometer (L.C=1 minute) 1
SL930 Sodium light source 1
SW915 Prism (EDF) 38mm 1
SL795 Diffraction grating 15000Lines/Inch 1
Sl439 Micrometer slit (least count 0.005mm) 1
  Instruction manual 1

SPECTROSCOPE (DIRECT VISION) SL281

 

PHYSICS, Class XII, Part-2,Chapter-9, Ray optics and optical instruments, Dispersion by a Prism.

Spectroscope

It is used to observe dispersion of light. Body made of brass. Supplied in wooden case. Length : 100 mm.

SPECTROMETER STUDENT SL273

 

PHYSICS, Class XII, Part-2,Chapter-9, Ray optics and optical instruments, Dispersion by a Prism.

Spectrometer Student

It is used for quantitative light experiments. The collimator is fixed on the base and the telescope can be rotated. Concealed helical focusing is provided on the telescope and collimator tubes. The collimator slit has spring loaded jaws. The graduated prism table has a vernier attached which is fixed on the telescope arm. The prism table is adjustable with the help of 3 knurled screws and it has screwed holes for attaching prism & grating holder.

Specification of Spectrometer :
Scale : German Silver
Objective : Achromatic, Focal Length178, Aperture 23mm
Slit : Brass
Reticle : 90° cross on glass
Least count : 6 minute
Base : Aluminium

Light & Optics Experiments