To verify the conditions of equilibriumfor parallel forces
APPARATUS:Two spring balance, two iron stand with Clamps, meter-rod, sharp wedge, weight box, thread PROCEDURE:Find the center of gravity (G) of the meter rod by balance it on a sharp wedge. Suspended the spring balance from the clamps of iron stand and find out zero-correction for balance. Keep the iron stand 60 to 70 cm […]
To study the conservation of momentum in case of an elastic collision.
APPARATUS: Friction compensated track, two trolleys, ticker timer with double tape, meter rode, stopwatch, stroboscopic disc. PROCEDURE: OBSERVATION AND CALCULATION: Frequency of the ticker timer = f = …dots/sec. BEFORE COLLISION: No. of obs. Mass of the trolley No.1. m1 (gm). 1 Velocity of the trolley No.1 v (cm/sec.) Momentum of the system before collision […]
Determination of value of acceleration of free fall (g) by vertical mass and spring system
APPARATUS: Soft slinky helical spring, pointer with two holes, slotted weight set, tall iron stand fitted with cm. scale and spring suspending support, stop watch. PROCEDURE: OBSERVATIONS: No. of Obs. Initial position of the pointer X1 (cm) Weight added to hanger (g) Position of the pointer with weight X2 (cm) Displace -ment X=x2 –x1 (cm) […]
Determine the internal resistance of a cell using a potentiometer.
Apparatus:
Determine the using velocity of sound at 0oC by resonance tube apparatus resonance position or eliminating the end correction.
Apparatus: Resonance tube apparatus, pinch cock, vernier callipers, thermometer, two tuning forks of known frequency, rubber pad, set square and beaker. Observations: Room temperature at the beginning = t1 oC Room temperature at the end = t2 oC Mean Room temperature = t = (t1 + t2) / 2 =…… oC Position of the open […]
Find the refractive index of the material of a prism using spectrometer
Apparatus:Spectrometer, glass prism and sodium lamp Theory:Spectrometer is an optical instrument used in laboratory to measure wave length of spectral lines, refractive index of solids etc. It has three essential parts. Collimator:It consists of a tube of variable length with an adjustable slit S at one end and a convex lens L at the other […]
Determine the focal length of concave lens using a convex lens.
Apparatus:Concave lens, convex lens/needles, optical bench, knitting needle. Observation:Length of the knitting needle =Lo =…….cmDistance between the convex lens and concave lens =L =…….cmIndex correction for the convex concave lens = Lo – L = …..cm Procedure:Put a […]
Determine the focal length of a concave lens by using (i) concave mirror (ii) concave lens.
Apparatus:Concave lens, concave mirror of short focal length, three uprights, optical bench, one and a knitting needle. Observations and Calculations: No. of obs. Position of […]
Determine the focal length of a convex lens by displacement method.
Apparatus:Convex lens, three uprights, optical bench two parallax needles, a knitting needle and a meter rod. Observations and Calculations: Approximate focal length of the convex lens (f) =…………..mLength of the knitting needle (L) =…………..cmObserved distance between object and image needle (L1) =………….cmIndex correction object and image needle (L1-L2) =…………..cm Observations and Calculations: No. of obs. […]
