The light from the star nearest to the sun reaches the earth in

A. 8 minutes

B. 4.3 years

C. 12 seconds

D. 24 hours

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

You can do it
  1. When a whistling engine approaches a person standing on the platform, the frequency or the note
  2. A star contains
  3. A device used to measure heights above sea level is known as
  4. The best estimates of the age of the earth comes from the studies of
  5. Velocity of sound in high altitudes is low because at such a height
  6. The period of oscillation of a simple pendulum depends upon
  7. Astigmatism, a structural defect of the eye, is due to
  8. A wire conveying a current deflects a pivoted magnetic needle. This was discovered by
  9. The Milky Way is
  10. In a vacuum the following three articles are dropped at the same time and from the lame height. Which…
  11. The stars that shine brightly then dimly and then brightly are known as
  12. Rays similar to X-rays but of smaller wave length that are given off by radioactive substances are
  13. The coil of an electric heater is made of
  14. The maximum displacement of the particle in a mechanical wave motion is known as
  15. The planet that spins Caster than any other planet is
  16. Who first established the fact that the earth revolves round the sun?
  17. Which of the following has the highest refractive index?
  18. To concentrate light on the defective teeth, the dentists use
  19. Radio waves sent out by radio stations are reflected by
  20. Every action has an equal and opposite reaction is Newton's law of Motion
  21. During thunder storm you are travelling in a car. To protect yourself from the lightning you will have…
  22. If a bar magnet is broken into two pieces
  23. When ice melts, Its volume
  24. A piece of ice is Boating In water kept in a beaker. When all the ice melts the level of water will
  25. The weight of a body is
  26. We see the sun before it actually rises on the horizon. This is due to
  27. Where does the centre of gravity of a rubber ring lie?
  28. The temperature, surface features, length of days and nights of a planet depend on
  29. The planet that is known as earth's twin is
  30. In hot climatic conditions, the buildings are painted white because