Ring A can slide on a smooth horizontal rod and block B can move vertically Both are attached by an inextensible string At a

Question

Ring A can slide on a smooth horizontal rod and block B can move vertically Both are attached by an inextensible string At a certain instant velocity of ring is v and of block is v2 At that instant ring is at a horizontal distance b from pulley as shown Then wwwwwwwww VI 20 B V2 A V VICOSO B a2 a cose where a and a represent the accelerations of block and ring respectively at that instant C V V cos0 D Angular velocity of the ring with respect to an observer on the pulley is v sine a b In a photoelectric effect experiment the frequency of incident radiation is

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