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
To determine the Wave-length of sodium light by a plane diffraction grating, using spectrometer.
Apparatus: A spectrometer, spirit level, sodium lamp, diffraction grating with clamping arrangement and eye-piece. Observations and Calculations: Least count of the spectrometer = Value of
To determine the wave-length of Sodium light by Newton ‘s Rings,
Apparatus: Newton’s ring apparatus, convex lens, Plano-convex lens, screen with hole, a source of sodium light, traveling microscope, spherometer. bservations and Calculations: Pitch of the
Determine the refractive index of a liquid using a concave mirror.
Apparatus: Concave mirror of long focal length vertical stand with clamp, a plumb line/parallax needle. Meter rod, index needle, liquid (water) and wooden stand) Observations:
To find refractive index of the material of prism by critical angle method Apparatus:
Glass prism, drawing board, sheet of white paper, drawing pins, protractor, set squares, pins and a meter rod. Observations and Calculations: No. of Obs. Angle
Find the refractive index of a transparent liquid using a hollow prism.
Hints: The hollow prism of glass is filled with the liquid whose refractive index is to be determined. Find the angle of prism and minimum