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Physics Questions and Answers

General Science
145. The force of attraction between planets was correctly given by
 
  • A. Newton
  • B. Galileo
  • C. Ptolemy
  • D. Kepler
 
 
146. A small drop of mercury is spherical due to
 
  • A. surface tension
  • B. gravity
  • C. elasticity
  • D. viscosity
 
147. The region converted by water is known as
 
  • A. ionosphere
  • B. atmosphere
  • C. hydrosphere
  • D. none of these
 
148. The temperature at which centigrade and Fahrenheit scales gives the same reading
 
  • A. 40° C
  • B. 40° K
  • C. -40° C
  • D. -40° K