Mechanics Sem-I CBCS (Hons) B.Sc Notes[Updated Regularly]
BU CC-2 Question Paper 2021
BU CC-2 Question 2020 [Practical Question]
BU CC 2 Theory Question 2019 [Practical Question]
BU CC 2 Theory Question 2018 [Practical Question]
BU CC 2 Theory Question 2017 [Practical Question]
*********************************************
2019 (July-Dec, Sem-I) Honours
PHYH-C-II: Mechanics
Home Work 1 [On Special Theory of Relativity]
Home Work 2 [On Simple harmonic motion]
Home Work 3 [Free and Forced Damped Oscillation]
Home Work 5
Internal Assessment 2
****************************************************************
2018 (July-Dec, Sem-I)
PHYH-C-II: Mechanics
Home Work and Class Notes
Internal Assessment 1 [Here]
Home Work (on Work & Energy)
Internal Assessment 2 [Here]
Delhi University Question Paper: Mechanics [Sem-1-Hons]
2019 (July-Dec-Sem-I-Hons: Lab Help)
Some Sample/ model values taken during experiments to calculate the quantity to be measured (using C programming..)
Finding Modulus of Rigidity by Dynamical Method
// this code will find rigidity modulus of wire by// dynamical method#include <stdio.h>#include <math.h>/*================================================================*/main(){double T = 1.1770; // time period of oscillationdouble l = 0.80; // Length of the wiredouble M = 2.1750; // mass of cylinder which is giving torque to the wiredouble R = 0.0353; // radius of the cylinder hanged below the wire// this M and R will be used to calculate moment of inertia of the cylinder..double I; // Moment of inertiadouble pi= 3.14159;double r = 0.0008875; // radius of wiredouble eta; // Rigidity modulus which is to be determined double M,R;// ================================*/// printf("Mass of cylinder: \n");// scanf("%lf",&M);// printf(" Radius of cylinder: \n");// scanf("%lf",&R); I=0.5*M*R*R;// printf("%f %f %f \n ",M,R,I);eta = (8.0*pi*I*l)/(T*T*pow(r,4));// printf("%0.16f \n ",y); printf("%0.16f x 10^10 \n ",eta/pow(10,10));return(0);}/*================================================================*/Young's Modulus of material of a wire by Searle Method// this code will find youngs modulus of material in// the form of a wire by Searle's Method#include <stdio.h>#include <math.h>/*================================================================*/main(){double g = 9.800; // acceleration due to gravitydouble L = 2.540; // Length of the wiredouble m = 1.250; // mass from graphdouble l = 0.00064; // depression from graphdouble pi= 3.14159;double d = 0.0014425; // diameter of the wire (experimental wire not the reference wire)double y; // final value of young's modulus to be determined// ================================*/y = (4.0*L*g*m)/(pi*d*d*l);// printf("%0.16f \n ",y); printf("%0.16f x 10^10 \n ",y/pow(10,10));return(0);}/*================================================================*/Young's Modulus by flexture code// this code will find youngs modulus of material in// the form of a bar by flexture method // (not wire. For wire see Searle code)#include <stdio.h>#include <math.h>/*================================================================*/main(){double g = 9.800; // acceleration due to gravitydouble L = 0.800; // Length of the Bardouble b = 0.01325; // bredth of the bar (this is greater than width generally)double d = 0.0067; // depth of the bardouble m = 1.250; // mass from graphdouble l = 0.00245; // depression from graphdouble y; // final value of young's modulus to be determined// ================================*/y = (g*L*L*L*m)/(4.0*b*d*d*d*l);// printf("%0.16f \n ",y); printf("%0.16f x 10^10 \n ",y/pow(10,10));return(0);}/*================================================================*/