The acoustical quality of a room depends on

A. the size and shape of the room

B. the ability of the ceiling, walls and floor to exclude unwanted sound

C. the use of furnishings made of sound absorbing materials

D. All the above

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

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  1. To concentrate light on the defective teeth, the dentists use
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  3. Railway tracks are banked on curves so that
  4. The attraction of unlike molecules at the common surface is known as
  5. Alpha particles are
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  16. Who discovered that the Cree Call acceleration Is the same for any object at a given place?
  17. A cyclist leans inwards when he is negotiating a curve 10 that
  18. Hydrophone is an instrument used
  19. When a body Is taken to the poles from the equator, Its weight becomes
  20. Why is it cool near an open pond on a hot summer day?
  21. A cup of hot coffee is placed on a metal table in a room. By which of the following methods does it…
  22. Heat is transmitted from one end of a metal rod to its other end by the method of
  23. Which force is used when milk is churned to separate cream?
  24. Which of the following sets of elementary particles have nearly equal masses?
  25. Of the following which has got the highest frequency?
  26. A boat loaded with rocks floats in the middle of a swimming pool. A man in the boat throws the rocks…
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