Write a note on wave-particle duality, which became evident in the early part of the 20th century. state the simple equations that relate the wave and particle properties of matter and light and explain their meaning. give an example and a brief description of two experiments: one that shows the wave nature of matter, and another that shows the particle nature of electromagnetic radiation.

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.6 m below the tank bottom which is a = 6.7 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute). report your answer in meters to two decimal places.