Your roadmap · आपका रोडमैप
- 1
Admission & first meetingप्रवेश और पहली मुलाकातEnquire at your nearest NDSS centre, meet the teacher, fix the batch time and get your study material.
- 2
Work planकार्य योजनाStep by step with your guide / trainer.
Planck's Constant and Photoelectric EffectCharge and Charge-to-Mass Ratio of ElectronHall Effect and SemiconductorsAtomic Spectra and Excitation Potentials
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File, report & vivaफ़ाइल, रिपोर्ट और वाइवाPractical file / report checked, mock viva before the final one.
- 4
Online tests & resultऑनलाइन टेस्ट और रिज़ल्टTake the tests online; your marks and result show in your student login and at the centre.
Syllabus · पाठ्यक्रम
1 subject · 4 chapters · 18 topics
01Planck's Constant and Photoelectric Effect
5 topics+
- Planck's constant using LEDs of different colours
- Knee (threshold) voltage of an LED
- Photoelectric effect: stopping potential versus frequency
- Work function of the photocathode
- I-V characteristics of a photocell at different intensities
02Charge and Charge-to-Mass Ratio of Electron
4 topics+
- e/m by Thomson's method (crossed electric and magnetic fields)
- e/m by magnetron valve method
- e/m using Helmholtz coils
- Millikan's oil-drop method for electronic charge
03Hall Effect and Semiconductors
4 topics+
- Hall voltage versus current and magnetic field
- Hall coefficient and sign of charge carriers
- Carrier concentration and mobility
- Band gap of a semiconductor by four-probe method
04Atomic Spectra and Excitation Potentials
5 topics+
- Wavelengths of mercury lines using diffraction grating
- Rydberg constant from hydrogen Balmer lines
- Resolving the sodium D lines
- Franck-Hertz experiment: excitation potential
- Error analysis and writing the practical record
About this course
You will be able to
- Determine Planck's constant using LEDs and the photoelectric effect
- Find the charge-to-mass ratio (e/m) of the electron by Thomson's method
- Measure the Hall coefficient and carrier concentration of a semiconductor sample
- Measure spectral line wavelengths and the Rydberg constant with a grating spectrometer
- Record observations, plot graphs, estimate errors and face the practical viva confidently
Who it is for
- B.Sc Physics students of Semester 5 (UP State Universities, NEP 2020)
- Students preparing for the B.Sc practical examination and viva
- Learners who want hands-on practice with modern physics apparatus
What you need
- Theory of Semester 5 modern physics (quantum and atomic physics)
- Basic graph plotting and error calculation
Online tests & result
Practice and unit tests online; marks and result show in your student login and at the centre.
Student login →
Questions
Which syllabus does this lab course follow?
It follows the B.Sc Physics Semester 5 syllabus of the UP State Universities (NEP 2020 common minimum syllabus). Where your own university's syllabus differs, the centre follows your university syllabus.
How are students assessed at the centre?
The trainer watches each experiment and marks it on a rubric (set-up, observations, calculation and viva); viva-style questions revise the theory behind the experiments.
Will this help in the semester examination?
Yes. The experiments match the university practical examination, including the record file and viva.
