The transverse, longitudinal and surface waves in an earthquake originate from ________

The transverse, longitudinal and surface waves in an earthquake originate from ________ Correct Answer The focus within the body of the earth

The transverse, longitudinal and surface waves in an earthquake originate from the focus within the body of the earth.The epicenter of an earthquake sends out waves which are like an object dropped on to a still body of water that sends out ripples. After the stone hits the water ripples move outwards from the centre in every direction. An earthquake releases energy as shock waves, the so-called seismic waves, which ripple across the earth's surface.
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The longitudinal, transverse and surface waves in an earthquake originate from
দুটি সুসঙ্গত উৎস থেকে λ দৈর্ঘ্যের দুটি তরঙ্গ সমদশায় বের হয় । একটি বিন্দুতে যেখানে তরঙ্গ দুটি মিলিত হয় সেখানে তাদের দশা পার্থক্য 90° । তরঙ্গ দুটির অতিক্রান্ত পথ পার্থক্য তখন কত ? ( Two coherent sources emit waves of wavelength λ which are in phase. which are in phase. The two waves meet at a point where they have a phase difference of 90°. Which of the following could be the traversed path difference between the waves?)
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