01. What is Photoelectric effect?
02. What is Work function?
03. Define Threshold frequency and Threshold wavelength.
04. What is stopping potential?
05. Can the work function depend on wavelength of the incident light?
06. 1 Joule = ______________ eV
07. In explaining the photoelectric effect which nature of light is considered. (particle or wave)
08. Which type of materials are used in Photoelectric effect? What are they?
09. Why alkali metals are used in photoelectric effect?
01. What is meant by figure of merit of galvanometer?
02. State Ohm’s law.
03. What are Ohmic and non-Ohmic conductors? What is the shape of graph drawn between V and I in those cases?
04. What happens if P and Q are interchanged?
05. What is the use of Galvanometer?
06. What is the use of Commutator?
07. What is the difference between a galvanometer and an ammeter?
08. Why ammeter is always connected in series in a circuit?
09. What are units of e.m.f?
01. What is the principle involved in wedge film?
02. What is a wedge shaped film?
03. What is superposition principle?
04. Define interference.
05. What are coherent sources?
06. What is a mono chromatic source? Give example.
07. What is meant by least count?
08. What is the least count of traveling microscope?
09. Why a glass plate is placed at an angle 450?
10. Instead of sodium vapor lamp if we use mercury source, is there any change in fringe pattern.
11. Why the readings are taken by coinciding the cross wire with dark fringes?
12. What are the uses of wedge film experiment?
13. What are the different types of phenomenon exhibited by light?
14. Which phenomenon of light is considered in explaining ‘interference’?
11. Why the sonometer box contains holes?
12. What are the differences between free vibrations and forced vibrations?
13. What is meant by linear density?
14. What is frequency?
