What is the unit for measuring the pitch or frequency of sound ?

A. Coulomb

B. Hum

C. Cycles

D. Decible

You can do it
  1. Carbon tetrachloride fire extinguisher should not be used in closed room because it produces poisonous…
  2. Old-written material, which cannot be read easily can be read by
  3. Polythene is industrially prepared by the polymerisation of
  4. Which of the following parts of the sun is easily visible only during a total solar eclipse?
  5. Quartz crystals normally used in quartz clocks etc. is chemically
  6. Epoxy resins is used as
  7. The intencity of Earthquakes is measured on
  8. Cell membrane is
  9. Which of the following items will be attracted to the north pole of a permanent magnet by a magnet force?
  10. Brass gets discoloured in air due to the presence of which gas in air
  11. The smallest functional and structural unit of kidney is called as
  12. According to Daltons atomic theory the smallest particle which can exist independently is
  13. The removal of top soil by water or wind is called
  14. In a certain electronic circuit the output is positive if input 1 is positive and input 2 is zero. If…
  15. In an atomic nucleus, neutrons and protons are held together by
  16. Which of the following is the lightest metal ?
  17. Water has maximum density at
  18. What is the unit for measuring the pitch or frequency of sound ?
  19. Liquefied Petroleum gas (LPG) consists of mainly
  20. Which of the following elements is obtained from sea weeds ?
  21. The most important ore of Aluminium is
  22. The metal that is present in Photo Films is
  23. Glass is made from the mixture of
  24. Which of the following elements is a metal
  25. The fastest acting enzyme in the biological kingdom is
  26. Nitrification means
  27. The metallic constituents of hard water are
  28. The oxide of Nitrogen used in medicine as anaesthetic is
  29. Which of the following elements is non-radioactive?
  30. Earth's seasons are caused by which of the following?