The loudness of a sound is determined by

A. Frequency

B. Amplitude

C. Speed

D. Wavelength

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

You can do it
  1. The planet that spins Caster than any other planet is
  2. Before the invention of geostationary satellites, television stations could not transmit their programmes…
  3. A hydrogen bomb is based on
  4. The difference between planets and stars is
  5. Out of the following which element has the longest half-life period?
  6. The maximum displacement of the particle in a mechanical wave motion is known as
  7. The stem of a vibrating tuning fork is pressed against a sound box. Then
  8. A solid ball of metal has a spherical cavity inside it. When the ball is heated the volume of the cavity…
  9. Separating particles from a suspension is effected by
  10. When light travels from one medium to another there is a change in its
  11. When a whistling engine approaches a person standing on the platform, the frequency or the note
  12. A temperature below absolute zero for an ideal gas
  13. The heat generated in a conductor carrying current is proportional to
  14. Powder clings to the skin because of
  15. The velocity of sound in air increases with
  16. The asteroids belt lies between the orbits of
  17. Which of the following can produce electricity?
  18. When a charged rod is brought near a collection of small pith balls, the balls
  19. The sun continuously produces an enormous amount of energy. This la due to
  20. The pressure of air at high altitude is less than the atmospheric pressure at the sea level. Hence the…
  21. The base of an electric iron is brightly polished mainly
  22. The speed of sound in a medium depends upon the properties of the medium such as
  23. The mass number and the atomic number of an element are X and Y respectively. The number oC neutrons…
  24. Solar radiation is preferred to other sources of energy because
  25. Hydrophone is an instrument used
  26. The transistor was invented by
  27. The Space Application Centre for training in Satellite Communication Technology is located at
  28. The light from the star nearest to the sun reaches the earth in
  29. Water has maximum density at
  30. The instrument used to measure atmospheric pressure is