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Science-General Knowledge Questions, Quiz

Q31. Which of the following devices is used to record humidity
(a) Hygrometer
(b) Psychrometer
(c) Thermo-hygrograph
(d) All of the above

Q32. Which is the most reactive metal
(a) Sodium
(b) Calcium
(c) Iron
(d) Potassium

Q33. The scientist who first discovered that the earth revolves round the sun was
(a) Newton
(b) Dalton
(c) Copernicus
(d) Einstein

Q34. Cosmic rays
(a) are charged particles
(b) are uncharged particles
(c) can be charged as well as uncharged
(d) None of the above



Q35. Typhoid and cholera are typical examples of
(a) infectious disease
(b) airborne disease
(c) waterborne diseases
(d) None of the above

Q36. Who discovered bacteria
(a) Fleming
(b) Lamble
(c) Temin
(d) Leeuwenhoek

Q37. Soap bubble appears coloured. It is due to
(a) Scattering
(b) Interference
(c) Reflection
(d) Refraction

Q38. Who was the first scientist to relate a star's spectrum to its temperature
(a) Meghnad Saha
(b) Satyendra Nath Bose
(c) C. V. Raman
(d) Birbal Sahni

Q39. The group of stars arranged in a definite pattern is called
(a) Milky way
(b) Constellation
(c) Andromeda
(d) Solar system

Q40. The plant type which colours the ocean surface water red is
(a) Dinoflagellates
(b) Golden algae
(c) Green algae
(d) Red algae



Q41. Which of the following is not a planetary wind
(a) Westerlines
(b) Trade winds
(c) Monsoon
(d) Polar easterlies

Q42. Which of the following is a social insect
(a) Mosquito
(b) Locust
(c) Bedbug
(d) Termites

Q43. Deficiency of folic acid leads to
(a) Anaemia
(b) Mental disorder
(c) Scurvy
(d) Night blindness

Q44. Which of the following has the least wavelength
(a) X-rays
(b) Microwaves
(c) Ultra Violet rays
(d) Radio waves

Q45. In 1905, Albert Einstein discovered
(a) Photoelectric effect and Brownian motion
(b) Brownian motion and special theory of relativity
(c) Special theory of relativity and photoelectric effect
(d) Photoelectric effect, special theory relativity and Brownian motion


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