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"An Electromagnetic wave falls on to a boundary between two losses less homogeneous media with different refractive indices, a part of the wave is reflected back to the incident medium and the rest is transmitted on to the second media". This phenomenon is known as:
When a wave strikes a vertical breakwater in deep water, it is reflected back and on meeting another advancing wave of similar amplitude merges and rises vertically in a wall of water. This phenomenon is called
If ‘Hs’ is the significant wave height, then the average wave height and highest wave height respectively are given by
Sound waves do not show the phenomenon of
Which of the following phenomenon is considered responsible for Global Warming?
When the Sun is near the horizon during the morning or evening, it appears reddish. The phenomenon that is responsible for this observation is
Which one is the plural of 'Echo'?
Echo এর সঠিক Plural -
What is the minimum distance (in metres) required to hear an echo?
When used in conjunction with a radar set, the purpose of an echo box is to provide an artificial target.