Practical Course V: Modern Physics

(For Non-Maths Combinations)

Work load: 30 hrs 2 hrs/week

On successful completion of this practical course, the student will be able to;

measure charge of an electron ande/m value of an electron by Thomson
understand how the Planck’s constant can be determined using Photocell and
study the absorption of α-rays and β-rays, Range of β-particles and the characteristics of GM counter
determine the Energy gap of a semiconductor using thermistor and junction

Minimum of 6 experiments to be done and recorded:

e/m of an electron by Thomson
Determination of Planck’s Constant (photocell).
Verification of inverse square law of light using photovoltaic
Determination of the Planck’s constant using LEDs of at least 4 different
Determination of work function of material of filament of directly heated vacuum diode.
Study of absorption of α-rays.
Study of absorption of β-rays.
Determination of Range of β-particles.
Determination of M &
Analysis of powder X-ray diffraction pattern to determine properties of
Energy gap of a semiconductor using junction
Energy gap of a semiconductor using thermistor
GM counter characteristics

MEASURABLE

Assignments (in writing and doing forms on the aspects of syllabus content and outside the syllabus content. Shall be individual and challenging)
Student seminars (on topics of the syllabus and related aspects (individual activity)
Quiz (on topics where the content can be compiled by smaller aspects and data (Individuals or groups as teams)
Field studies (individual observations and recordings as per syllabus content and related areas (Individual or team activity) Study projects (by very small groups of students on selected local real-time problems pertaining to syllabus or related areas. The individual participation and contribution of students shall be ensured (team activity)

GENERAL

Some of the following suggested assessment methodologies could be adopted;