Measure a DC and AC voltage by a cathode ray oscilloscope.
Apparatus Theory The voltage required to produce one small division of deflection of the light spot on the screen of an oscilloscope is called its
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