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PrayogShala Physics Simulations Lab Home

Experiments Experiments

Crystallography Experiment 1
Planck's Constant Experiment 2
Band Gap Experiment 3
LASER Divergence Experiment 4
Optical Fibre Experiment 5
Hall Effect Experiment 6
Malus Law Experiment 7
Kundt's Tube Experiment 8
Specific Rotation Experiment 9
Diffraction Grating Experiment 10
Resolving Power Experiment 11

1 Aim & Apparatus
2 Theory
3 Setup Diagram
4 Simulation
5 Viva Questions

Experiment 10 · Aim & Apparatus

Diffraction Grating

Aim

To determine the wavelength of spectral lines in the spectra of Hg source.

Apparatus

01 Spectrometer
02 Diffraction grating
03 Mercury vapour lamp

All experiments Next Theory

Designed & developed by

Ojas Joshi

I design and build interactive simulations, 3D web apps and websites. If you want something like PrayogShala for your institute, lab or product, get in touch.

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PrayogShala Physics Simulations Lab

An Interactive Virtual Learning Environment for Physics.

Experiments

Crystallography
Planck's Constant
Band Gap
LASER Divergence
Optical Fibre
Hall Effect
Malus Law
Kundt's Tube
Specific Rotation
Diffraction Grating
Resolving Power

Project guides

Dr. Mrs. Preeti Sunil Joshi

Assistant Professor, Department of General Engineering, WIT Solapur
Mr. Sanjivkumar S Siddul

Assistant Professor, Department of General Engineering, WIT Solapur

© 2026 Ojas Joshi. All rights reserved. PrayogShala is proprietary software; unauthorised copying, reuse, or redistribution is prohibited.

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Crystallography Planck's Constant (LED Knee-Voltage) Band Gap (p-n Junction) LASER Beam Divergence Optical Fibre (Numerical Aperture) Hall Effect Malus's Law Kundt's Tube Laurent's Half-Shade Polarimeter Plane Diffraction Grating Resolving Power of a Grating

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Graphics acceleration is off 3D simulations can’t run here yet Graphics acceleration is on

3D simulations run slower without it. Turning it on is recommended.

The simulations need WebGL 2, which isn’t available in this browser right now. Turning on hardware acceleration usually brings it back; if not, update the browser or the graphics driver.

3D simulations are running with hardware acceleration. Nothing to change.

To fix it in Chrome

01
Open a new tab and go to
chrome://settings/system
02 Turn on “Use graphics acceleration when available”.
03 Click Relaunch.

To fix it in Edge

01
Open a new tab and go to
edge://settings/system
02 Turn on “Use graphics acceleration when available”.
03 Click Restart.

To fix it in Brave

01
Open a new tab and go to
brave://settings/system
02 Turn on “Use graphics acceleration when available”.
03 Click Relaunch.

To fix it in Firefox

01
Open a new tab and go to
about:preferences
02 Under Performance, untick “Use recommended performance settings”.
03 Tick “Use hardware acceleration when available”.
04 Close and reopen Firefox.

To fix it in your browser

01 Open your browser’s settings and search for “hardware acceleration” or “graphics acceleration”.
02 Turn it on.
03 Close and reopen the browser.

On a college lab computer this setting may be locked. If so, ask the lab in-charge.