The focal length or lens or the eye is under the control or the

A. iris

B. pupil

C. ciliary body

D. cornea

Related Questions

  1. Two tumblers stuck together can be separated by
  2. When the resistance of a circuit increases the current will
  3. The motion .of the pendulum of a wall clock is an example of
  4. The attraction of unlike molecules at the common surface is known as
  5. When ice melts, Its volume
  6. The ringing of an electric bell in an enclosed evacuated glass bell jar is not heard outside because
  7. Out of the following which is an insulator?
  8. A man stands in a lift which accelerates upwards. The resultant reaction force on the floor of the lift…
  9. The presence of impurities
  10. We see the flash of lightning before hearing the thunder because
  11. The extremely luminous objects located at the centre of some distant galaxies and which are sources…
  12. In hot climatic conditions, the buildings are painted white because
  13. In an oil lamp, holes are provided below the chimney so that
  14. Credit for starting Space Science Research in India goes to
  15. The Milky Way is
  16. An ohm is a unit of
  17. When white light passes through a glass prism we get a spectrum on the other side of the prism. In the…
  18. Sound waves In 'air travel faster if
  19. In a refrigerator, the refrigerant is
  20. X-rays are
  21. The enormous energy released in nuclear and thermonuclear reactions is due to conversion of
  22. A man weighing 50 kg floats on water in a lake. His apparent weight is
  23. The planet that has got a well-developed set of rings is
  24. The Space Application Centre for training in Satellite Communication Technology is located at
  25. Solids have definite shapes. This is because
  26. The body of an electrical appliance is earthed in order that
  27. The study of astronomy include a
  28. When an incident beam of light strikes the surface of a glass slab normally, the refracted beam
  29. When a steel ball is placed on the surface of mercury, it does not sink because
  30. The number of electrons in the outer orbits of a nucleus gives

Please do not use chat terms. Example: avoid using "grt" instead of "great".