B.Sc. PHYSICS SYLLABUS UNDER CBCS I YEAR B.Sc. -I SEMESTER

[2020-21 Batch onwards]

Course I: MECHANICS,WAVES AND OSCILLATIONS

(For Non-Maths Combinations)

Work load: 60 hrs per semester                                                                   4 hrs/week

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Course outcomes:

On successful completion of this course, the students will be able to:

• Understand the Newton’s laws of motion and the law of conservation of linear momentum and its application to rocket motion, the concepts of concepts of impact parameter, scattering cross section and Distinguish between elastic and inelastic collisions.
• Formulate the rotational kinematic relations, learn the working principle of gyroscope and its applications and explain the precessional motion of a freely rotating symmetric
• Analyse the general characteristics of central forces and the application of Kepler’s laws to describe the motion of planets and satellite in circular orbit through the study of law of
• State the postulates of Special theory of relativity and its consequences such as length contraction, time dilation, relativistic mass and mass-energy
• Understand the phenomena of simple harmonic motionand the distinction between undamped, damped and forced oscillations and the concepts of resonance and quality factor with reference to damped harmonic
• State the laws of transverse vibrations in a stretched string and their verification using a

sonometer and learn the formation of harmonics and overtones in a stretched string.

• Acquire knowledge on Ultrasonic waves, their production and detection and their applications in different

UNIT-I:

1. Mechanics of Particles(06 hrs)

Review of Newton’s Laws of Motion, Conservation of linear momentum, Collisions, Elastic and inelastic collisions, Collisions in one and two dimension, Rocket propulsion, Impact parameter, Scattering cross-section, Rutherford scattering (No derivation-Qualitative ideas only)

2. Mechanics of Rigid body: (06hrs)

Rigid body, Rotational kinematic relations, Rotational kinetic energy and moment of inertia, Angular momentum, Torque, Relation between torque and angular momentum, Conservation of angular momentum, Illustrations,

UNIT-II:

3. Central forces: (12hrs)

Central force-Definition& examples, General Characteristics of Central forces, Conservative nature of central forces, Planetary motion-Kepler’s laws (Statements & Explanation), Deduction of Newton’s law of gravitation from Kepler’s law, Geostationary  Satellite Motion, Uses of communication satellites,

UNIT-III:

4. Relativistic Mechanics (12 hrs)

Inertial and Non-inertial reference frames-Galilean relativity; Special theory of relativity- Statements of the two basic postulates- (Elementary treatment and application only) Lorentz transformation equations (No derivations); length contraction; time dilation; addition of velocities; Einstein’s mass –energy equation

UNIT-IV:

5. Undamped, Damped and Forced Oscillations (12hrs) Simple harmonic motion, Characteristics of SHM, Equation of motion and solution, Combination of Simple harmonic motions along a line and perpendicular to each other- Lissajous figures& uses, Damped vibrations: Explanation and examples, Distinction between damped and undamped vibrations, Forced vibrations: Explanation and examples, Resonance,

examples – Sharp resonance and Flat resonance, Sharpness of resonance, Q-factor.

UNIT-IV:

6. Wave motion : (06hrs)

Progressive waves-Equation of a progressive wave, Velocity of transverse waves in elastic media, Standing waves, overtones and harmonics, Sonometer-Verification of laws of transverse vibrations in a stretched string, Phenomenon of beats (qualitative ideas only).

7.   Ultrasonics :                                                                                                                           (06hrs)

Ultrasonics, properties, production of ultrasonics by piezoelectric and magnetostriction methods, detection of ultrasonics, Applications of ultrasonic waves.

REFERENCE BOOKS:

• BSc Physics, Vol.1 -Telugu Academy, Hyderabad
• Physics for Biology and Premedical Students –D.N. Burns & SGG Mac Donald
• Unified Physics Vol.I- Mechanics,Waves and Oscillations; Jai PrakashNath&Co.Ltd., Meerut.
• Properties of Matter – D.S. Mathur, S.Chand& Co, New Delhi ,11^th, 2000
• Properties of Matter – Brijlal&Subrmanyam, S.Chand&Co. 1982
• Waves and Oscillations- S. Badami, Balasubramanian and K. Rama Reddy, Orient Longman.
• Waves and Oscillations- N. Subramaniyam and Brijlal, Vikas Publishing House Private Limited.