Rohit News: जून 2026

सोमवार, 15 जून 2026

Physics (B.Sc 1st semester )

Index

S.r.No.	Name of the Experiment	Page No.	Date of Experiment

1.	To determine the moment of inertia of flywheel about its own axis of rotation.	1..	..2026

2.	To determine the moment inertia of an inregular r’gid body about an axis passing through its center of gravity of perpendicular to its plane by dynamical method (Inertia table )	2	..2026

3.	To study the variation of T with L for a bar pendulum ( Compaund Pendulum ) To determine – Value of acceleration due to gravity ,the position of centre of gravity of a bar and radius of gyration K.	3	..2026

4.	To determine the modulus of rigidity of a wire by marwell’s Nedle.	4	…2026

5.	To determine the height of wire by Sertant	5	..2026

6.	To determine the Poisson’s ratio of Rubber Tube by using rubber Tube	6	..2026

Note.

(Please note: if a particular experiment is not visible, please search for it using the search box—for example, Experiment No. 3.)

कृपया ध्यान दीजिये जो एक्सपेरिमेंट न दिख रहा हो वो आप सर्च बॉक्स में सर्च कर लीजिये . जैसे , एक्साप्रिमेंट नंबर.3

Experiment No . 1 ( B.Sc. 1 Semester Physics Project file )

Experiment No. 1

Object

To determine the moment of inertia of flywheel about its own axis of rotation.

Apparatus Required

Flywheel , meter scale , vernier , callipers , stopwatch , sut of waits a thread.

Formula Used

The moment of Inertia I of the flywheel is given by –

Where , m is the mass of suspendet rod at the end of string , r is radius of suspendet rod & n₁ is number of revolutions mode b the wheel before the mass is detached from the wheel & n₂is number of revolution mode by the flywheel to come to rest after the mass is detached & t is time taken by the wheel in n₂revolutions & g is acceleration due to gravity , r is radius of suspendet rod .

Observation table

S.No	Total Mass (gm)	No. of mass of the round axis ( n₁ )	No. of revolution of flywheel to come to rest after (n₂₎	Mean of ( n₂)	Time table in revolution t sec	Mean of t
1.	250 gm 250 gm 250 gm	5 5 5	45 47 48	47	80 sec 81 sec 85 sec	82 sec

2 .	350 gm 350 gm 350 gm	5 5 5	53 61 61	58	86 sec 98 sec 97 sec	94 sec

3 .	500 gm 500 gm 500 gm	5 5 5	78 78 78	78	112 sec 107 sec 116 sec	112 sec

Calculation

From the observation table -

2. From the observation table –

. m = 350 gm = 0.350 kg Radius of the axis = 0.0102m G = 9.8 m/sec2 , .n1 = 5 , n2 = 8 , t = 94 sec.

Mean of I

Sources of error & Precautions

There should be uniform winding en the axle .
2. The string loop should be loose.
3. Friction should be made small by ball bearings .
4. The diameter of the axle should be majored at various points .
5. Mass should fall freely.
6. Mass must start with zero velocity.