Question

1.In your own words, explain the "surprise" in Planck's work and the social significance of the time (1900s).

2. Explain how fireworks work.

3. Explain the photoelectric effect and the dual nature of light.

4. Explain the evidence supporting that particles such as electrons have wavelengths.

5. Explain the relationship between the size of matter and its exhibition of particulate and the wave properties. Give examples not found on Wikipedia.

6. Why are 100ºF and 10% humidity more comfortable than 100ºF and 95% humidity?

Answer 1

Solution:

1) Plancks work in 1900's is very significant in quantum theory as it scientifically contributed in development of variuos theory, such that is the Einsteins relativity theory which originals has the root / base from plancks quantum mechanics, the term of photon significance is insisted by plancks to the scientific commmunity which paved the way for development of new instruments.

2) In firework the explosive materials are packed in void of ocygen which is a main source for complete combustion, once ignited the source of oxygen is supplied through excitation of explosive materials molecules results in combustion of explosives which are predominately filled with coloring agent for illumination of light in various colors.

3) The photoelectric effect is similar in operation of electrochemical cell, instead the source of ion magnitude from electrolyte is provided by source of photons from photocell which initiates the migration of ions in electrolyte for increasing the electromotive force.

4) Einstein relative theory aigned with plancks quantum is clearly evident electrond do possess wavelength in order to absorb and emit the energy excited from photons.

5) de-brogie's equation is the base for analysis of matter and particulate, the best example is of analysis of water molecules which behaves as matter in freezing condition, particulate behaviour in boiling condition.

6) Humidity is related to mositure absorbed hot air in simple can represented as hot breeze, which is not comfortable while comparing with low humid air.