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Biophysics - Questions and Answers for Competitive Exams | GkSeries

Questions
1. Who invented mass spectrometers?
  • [A] J.J. Thompson
  • [B] Goldstein
  • [C] Nikola Tesla
  • [D] Aston

Answer: Option [A]

2. Dynamic property of liquids causing internal friction
  • [A] Impulse
  • [B] Attractive energy
  • [C] Relative energy
  • [D] Viscocity

Answer: Option [D]

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3. Concerns of heat measurement and methods of heat amount measurement
  • [A] Viscosity
  • [B] Themometry
  • [C] Calorimetry
  • [D] Elecricity

Answer: Option [C]

4. Wavelength of light is represented as
  • [A] lambda
  • [B] alpha
  • [C] beta
  • [D] gamma

Answer: Option [A]

5. The Emission of energy in form of emitted particles, the action known to be
  • [A] Emulsification
  • [B] Ionization
  • [C] Reaction
  • [D] Radiation

Answer: Option [D]

6. The lens in the human eye is
  • [A] plano convex
  • [B] concave convex
  • [C] biconcave
  • [D] biconvex

Answer: Option [D]

7. Sound is
  • [A] electromagnetic wave motion with low frequency
  • [B] electromagnetic wave motion with high energy
  • [C] mechanical wave motion
  • [D] best audible in a vacuum

Answer: Option [C]

8. Phytochrome is a pigment and photoreceptor that plants use to detect
  • [A] Dark
  • [B] Light
  • [C] Temperature
  • [D] Heat

Answer: Option [B]

9. Which of the following wavelengths of light is most effective for photosynthesis
  • [A] 100 nm to 200 nm
  • [B] 200 nm to 300 nm
  • [C] 400 nm to 700 nm
  • [D] 700 nm to 900 nm

Answer: Option [C]

10. The absorption of ink by blotting paper involves
  • [A] viscosity of ink
  • [B] capillary action phenomenon
  • [C] diffusion of ink through the blotting
  • [D] siphon action

Answer: Option [B]

11. Nuclear sizes are expressed in a unit named
  • [A] Fermi
  • [B] angstrom
  • [C] tesla
  • [D] none of the above

Answer: Option [A]

12. Stars appears to move from east to west because
  • [A] all stars move from east to west
  • [B] the earth rotates from west to east
  • [C] the earth rotates from east to west
  • [D] the background of the stars moves from west to east

Answer: Option [B]

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