The study of astronomy include a

A. astrology

B. astrophysics

C. astrometry

D. Both (b) and (c) above

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

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  1. Sound waves In 'air travel faster if
  2. A permanent magnet may be demagnetised by
  3. At what temperature do the Fahrenheit and Kelvin scales give the same reading?
  4. Credit for starting Space Science Research in India goes to
  5. A device used to measure heights above sea level is known as
  6. An electric charge is measured in
  7. For an electron orbiting in a hydrogen atom, the necessary centripetal force keeping it in orbit is…
  8. Which of the following is fissionable?
  9. The instrument used to measure the strength of electric current at a point is
  10. When a steel ball is placed on the surface of mercury, it does not sink because
  11. An ammeter has
  12. The tiniest of the stars belong to the group known as
  13. The neutron, one of the constituent particles of which the nuclei of atoms are composed was discovered…
  14. The hygrometer is an apparatus used for finding the
  15. The planet that spins Caster than any other planet is
  16. Cosmic rays are
  17. Under similar conditions of temperature and pressure, the velocity of sound is maximum in
  18. Solar radiation is preferred to other sources of energy because
  19. Resistance is measured in
  20. A rheostat is used
  21. Photoelectric cell is a device which converts
  22. The scientist who first sent electromagnetic waves to distant places was
  23. When a body Is taken to the poles from the equator, Its weight becomes
  24. The electrical domestic tube light gives white fiourescent light because of
  25. Cyclotron is an apparatus used
  26. The phenomenon of radioactivity was discovered by
  27. Which of the following pairs is not correct?
  28. Nuclear fission process means
  29. The Space Application Centre for training in Satellite Communication Technology is located at
  30. The heat produced in a conductor due to the passage of a current through it is proportional to