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Particles of the medium implement simple harmonic motion about their mean position in a direction perpendicular to the direction of propagation of wave motion.
(i) It goes in the form of crests and troughs.
(ii)A crest is a section of the phase which is raised temporarily above the normal position of rest of the particles of the medium when a transverse wave passes by it.
(iii) A trough is a part of the phase which is depressed temporarily below the normal position of rest of the particles of the medium, when transverse wave passes by it.
(iv) Examples of transverse wave motion: Movement of string of a sitar or violin,
Draw a ray diagram to show the formation of image of an object placed among the optical centre and focus of the convex lens. Write the characteristics of image formed. Using this d
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An athlete run a certain distance before taking a long jump. Why?
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