Radiation and dual nature 1. observation on Photoelectric effect (a)effect of intensity (2) effect of potential (3) effect of frequency 2. davison and germer experiment 3. De Broglie wavelength all th relations. 4. Einstein Photoelectric equation 5. determine Planck's using cut off volte vs is frequency graph? 6. use of photocell Electromagnetic waves 1.Show that average energy density of electric field is equal to the average energy density of magnetic field. 2. hertz experiment 3. use of electromagnetic radiation ,radio waves ,microwaves infrared. radiation. ultraviolet radiations ,X Ray and gamma rays 4. importance of ozone layer 5. relation between the amplitude of electric and magnetic field in electromagnetic wave Current electricity 1. how will you compare the EMF of two primary cell using potentiometer 2. how will you determine the electrical resistivity of a material of wire using metal Bridge 3. using kirchoff’s rule obtain the condition of wheatstone bridge in balanced the state 4. Prove the relation density = m/he2T 5. explain how does the electrical resistivity of a conductor insulator and semiconductor vary with temperature 6. state and prove maximum power theorem 7. state Faraday's laws of electrolysis and derive the relation between chemical equivalent and electrical equivalent . 8. relay relation current and drift velocity 9. describe the principle of potential metre and why does the potential metre prefer over of voltmeter to measure the emf of a cell? 10. how does thermo EMF vary with the temperature 11. the thermo emf develops in Bi- antimony Thermocouple is higher than copper -Iron thermocouples .why 12. write two application of thermoelectricity 13. what is the role of magnese dioxide in a dry cell 14. it is easier to start a car engine on a warm day than on a Chilly day
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