Measure a DC and AC voltage by a cathode ray oscilloscope.
Apparatus Cathode ray oscilloscope • DC voltmeter • AC voltmeter step – down transformer battery • rheostat • key and connecting wires. Theory The voltage required to produce one small division of deflection of the light spot on the screen of an oscilloscope is called its sensitivity. When an oscilloscope is switched on a spot […]
Experiment # 16
Determine the atomic weight of covalent metal M. When 4g. of its hydroxide (MOH) are dissolved per dm3 in the given solution, 0.1M HCL is given. Principle It is an acid-base titration because MOH is a base which can be use against an acid. Equation. MOH + HCL → MCl + H2O Mole ratio. 1: 1 […]
EXPERIMENT 15
To study the variation of photoelectric current with intensity of light APPARATUS: THEORY The intensity of light is equal to the light energy falling per second on a unit area held perpendicular to the path of light. It is measured in watts per square meter (W/m2). The intensity pf light form a point source of […]
Determine the wavelength of sound in air using stationary waves and to calculate ihe speed of sound.
Apparatus: Resonance tube apparatus, two tuning forks of known frequency, plumb line, vernier callipers. Rubber pad, thermometer, set squares, pinch cork and a beaker. Observations: Vernier Constant of vernier calliper = 0.01cm Zero correction of vernier caliper =………………cm Internal diameter of the resonance tube = (i) …cm (ii) …cm (iii) …cm Mean corrected internal diameter […]
Verify the laws of vibrating string by electromagnetic method.
i. law of length , ii. law of tension (faT), iii. law of mass Apparatus: Sonometer, pieces of wire of different diameters, wedges, slotted weight set. L – shaped permanent magnet, bulb 10 watt, power amplifier, audio frequency single generator. Procedure of law length: Place Sonometer on the table with pulley m the edge […]
Determine the moment of inertia of a flywheel.
Apparatus: Flywheel, two weights 300 gm and 200 gm, cotton string, stop-watch, metre rod and vernier caliper. Observation: Vernier constant of the vernier callipers =………..cm Diameter of the axle 1 st position (d 1) =………. cm Diameter of the axle 2nd position (d2) =……..cm Mean diameter or the axle d = (d1 + d2) / 2 […]
Determine the frequency of A.C by Melde’s Apparatus/electric Sonometer.
Apparatus: Electrically maintained tuning fork, stout cotton thread, a light scale pan, weight box. Rheostat . Observations: Mass of 1 meter long thread = m =……………………. gms Mass of I cm thread = m= /100 =……….cms /gms Mass of scale pan =m1 =…….cms/gms No. of Obs. No of loops ‘n’ Distance between extreme nodes ‘d’ cm […]
Determine Young’s modulus of elasticity of a wire by ratus:
Apparatus : Scarle’s apparatus, micrometers screw gauge, meter rod, two identical wires, and spirit level and kilogram weights. Observations: Length of wire (L) = ……Cms Pitch of the screw gauge =……mm Number of division on circular scale =……mm Least count of the screw gauge =……mm Zero error in the screw gauge =……mm =…..cm Mean zero […]
