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  1. A tuning fork of frequency 512 Hz makes 4 beats per second with the vibrating string
  2. When photons of energy hν fall on an aluminium plate (of work function E₀),
  3. If h is the height of the capillary rise and r be the radius of capillary tube,
  4. An interference pattern was made by using red light. If the red light
  5. For a thermocouple, the neutral temperature is 270⁰C when its cold junction is at 20⁰C.