waves 5.0

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Across
  1. 4. Suitable for satellite based communications because can pass through atmosphere
  2. 5. The principle of superposition states that when two waves overlap, the resultant __________ is equal to the sum of the displacements of the individual wave.
  3. 7. time taken to complete one oscillation.
  4. 9. Applications of Reflection of Waves in Daily life
  5. 12. oscillation is the maximum displacement from the mean position
  6. 18. The angle of incidence =angle of reflection
  7. 19. occurs when the speed of wave changes, as it moves from one medium to another
  8. 20. is said to have occurred in oscillating system when the system loses energy to the surroundings, usually in form of heat energy
  9. 22. Sounds waves are longitudinal waves which required a medium for its __________.
  10. 24. Bridge can collapse- when _______ of its vibration increases as result of reasonance
  11. 25. Electromagnetic waves carries energy and __________
  12. 26. When ray light travel from denser to less dense,the ray refracts_________normal
Down
  1. 1. Sound waves cannot propagate in ______
  2. 2. Interference when two sets of ________ waves emerging from double slit overlap and interfere each other
  3. 3. ______ waves caries along with audio and video
  4. 6. Sound travel at _______ speed in cold air
  5. 7. longitudinal waves:_______to the direction of the wave motion
  6. 8. when a system is made to oscillate at a frequency equivalent to its natural frequency by an external force.
  7. 10. Water waves undergo refraction (_________) when they are slow down.
  8. 11. The effect of diffraction is obvious when the size of slit is ____
  9. 13. A transverse wave is a wave where the particles of the medium vibrate in a direction that is ___________ to the direction of the wave motion.
  10. 14. the number of complete waves produced in one second.
  11. 15. a phenomenon in which waves spread out as they pass through an aperture or a small obstacle
  12. 16. occurs when two sets of continuous waves arrive at the same place.
  13. 17. The points of constructive are known as _______
  14. 21. The ______ the gap, the more waves spread out
  15. 23. Shortest wavelengths in the electromagnetic spectrum