physics suggestion of 1st semester 2019

PHYSICS SUGGESTION

1. 1.                 What is fundamental unit and what is derived unit
2. 2.                 What is the principle of dimensional homogeneity
3. 3.                 what are the limitation of dimensional analysis

4.                 Short notes

                                                          I.            Absolute error

                                                       II.            Percentage error

                                                    III.            Relative error

                                                   IV.            What is accuracy

1. 5.                 Define stress and strain
2. 6.                 Write down the hooks law
3. 7.                 Draw the stress strain diagram for ductile material and brittle material
4. 8.                 Write down:- young modulus, bulk modulus, modulus of rigidity, poisons ratio
5. 9.                 What is the relation among the elastic modulus
6. 10.             What is surface tension and what is its unit and its dimension
7. 11.             What is cohesive force and adhesive force
8. 12.             What is surface energy
9. 13.             What is angle of contact
10. 14.             Write down the jurins law
11. 15.             Write down the Pascal’s law
12. 16.             Define buoyancy and what its unit
13. 17.             Write down the condition of equilibrium of floating body
14. 18.             Write the Archimedes principle
15. 19.             What is streamline flow turbulent flow
16. 20.             What is critical velocity
17. 21.             Write down the Bernoulli's theorem
18. 22.             Write down the Newton’s laws of viscosity
19. 23.             Define coefficient of viscosity
20. 24.             Write down the  Stokes law
21. 25.             What is terminal velocity
22. 26.             Short notes
23. Coefficient of linear thermal expansion, coefficient of cubical expansion, coefficient of superficial expansion
24. 27.             What is thermal conductivity
25. 28.             Write down ideal gas law
26. 29.             Write down  zeroth law of thermodynamics
27. 30.             Write down the first law of thermodynamics
28. 31.             What is an isothermal process and adiabatic process
29. 32.             What is the difference between heat and temperature
30. 33.             Derive the relation between coefficient of volume expansion and the coefficient of linear expansion of solid
31. 34.             What is black body.write down the Stefan’s law for blackbody with proper explanation of symbol
32. 35.             What is the difference between isothermal expansion and adiabatic expansiothe pendulum clock generally goes faster in winter and slower in summer why
33.  
34. 36.             What luminous flux
35. 37.             What is the principle of photometry
36. 38.             Write down the huygens principle
37. 39.             Principle of superposition of waves
38. 40.             Condition of young's experiment for permanent interference
39. 41.             Define dioptre
40. 42.             Write down total internal reflection and critical Angle
41. 43.             What is optical fibre and what are the uses of optical fibre
42. 44.             Explain-“absolute relative index of Glass is 1.5”
43. 45.             Write down The lens Maker formula
44. 46.             Define critical angle
45. 47.             Define optical centre of lens
46. 48.             What is young double slit experiment
47.  
48. 49.             Write down stopping potential
49. 50.             What is photovoltaic cell
50. 51.             Define half life of radioactive substance
51. 52.             What is radio isotope
52. 53.             Explain the working principle of solar photovoltaic cell
53. 54.             What is nuclear fission (নিউক্লিয় বিভাজন)
54. 55.             What is average life, what is atomic mass unit
55. 56.             Define work function
56.  
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