46. Who discovered the Photo Electric Effect?
(a) Albert Einstein (b) James Clark Maxwell
(c) Heinrich Hertz (d) Christian Huygens
Answer: ( c)
47. Who proposed the wave theory of light?
(a) Albert Einstein (b) James Clark Maxwell
(c) Heinrich Hertz (d) Christian Huygens
Answer: ( d)
48. Who proposed Electro Magnetic Theory?
(a) Albert Einstein (b) James Clark Maxwell
(c) Heinrich Hertz (d) Christian Huygens
Answer: (b )
49. Who explained Photo Electric Effect?
(a) Albert Einstein (b) James Clark Maxwell
(c) Heinrich Hertz (d) Christian Huygens
Answer: ( a)
50. Of the following, select the radiation having the highest wavelength.
(a) Gamma rays (b) Microwaves
(c) X-rays (d) Radio Waves
Answer: (d )
51. Of the following, select the radiation having the highest frequency.
(a) Gamma rays (b) Microwaves
(c) X-rays (d) Radio Waves
Answer: ( a)
52. Particles which are supposed to travel faster than light are
(a) Fermions (b) Gravitons
(c) Quarks (d) Tachyons
Answer: (d )
53. Who discovered tachyons?
(a) Heinrich Hertz (b) James Clark Maxwell
(c) ECG Sudarsan (d) APJ Abdul Kalam
Answer: (c )
54. Of the following, which is not a primary color?
(a) Violet (b) Red
(c) Blue (d) Green
Answer: (a )
55. Material used as Fuse wire is
(a) Tungsten (b) Copper
(c) alloy of Tin & Lead (d) Aluminium
Answer: (c )
56. The voltage range at which alternate current is supplied for
household use in India is
(a) 200- 210 Volt (b) 220- 230 Volt
(c) 320- 330 Volt (d) 310- 320 Volt
Answer: (b )
57. What is the frequency of household alternate current in India?
(a) 30 hertz (b) 40 hertz
(c) 50 hertz (d) 60 hertz
Answer: ( c)
58. Eample of ferromagnetic substance is
(a) Platinum (b) Sodium
(c) manganese (d) Cobalt
Answer: (d )
59. What is the Curie temperature of iron?
(a) 730C (b)
770 C
(c) 810 C (d) 850 C
Answer: ( b)
60. An example for a semi-conducting material is
(a) Copper (b) Sodium
(d) Gold (d) Germanium
Answer: (d )
PSC GENERAL SCIENCE QUESTIONS AND ANSWERS
1. General Science - Physics
2. General Science Chemistry
3. General Science Biology
4. General Science Zoology
5. General Science Questions and Answers
Related Post
1. PSC CURRENT AFFAIRS-2015 (2000 FACTS)---> Click here
2. PSC PREVIOUS / SOLVED QUESTION PAPERS ---> Click here
3. PSC GENERAL KNOWLEDGE QUESTIONS AND ANSWERS ---> Click here
PSC GENERAL SCIENCE QUESTIONS AND ANSWERS
1. General Science - Physics
2. General Science Chemistry
3. General Science Biology
4. General Science Zoology
5. General Science Questions and Answers
Related Post
1. PSC CURRENT AFFAIRS-2015 (2000 FACTS)---> Click here
2. PSC PREVIOUS / SOLVED QUESTION PAPERS ---> Click here
3. PSC GENERAL KNOWLEDGE QUESTIONS AND ANSWERS ---> Click here
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