Question: - In a certain medium the war no. k. & feq. w are related by the relation, (4( Hak) W === where c &

- In a certain medium the war no. k. & feq. w

- In a certain medium the war no. k. & feq. w are related by the relation, (4( Hak) W === where c & a are constents if Ug is the group. velocity & Up is the phane velacity then (a) Ug = Up (b) Vp Vy = (1+ at ). (1+2ak) | (c) uz up=C [(d) vgvp = c (1+ 2ak

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