六 An aquarium tank has a depth of 22 cm.
(b) If a glass plate, 10 cm thick, is placed on the bottom of the tank, what is the apparent thickness of the plate when viewed from directly above the water? The indices of refraction for air, water, and glass are nₐ = 1, n? = 4/3, and n? = 5/3, respectively. Express your calculations using fractional numbers (such as 4/3) instead of decimal numbers (such as 1.33...).
(a) Calculate the apparent depth of the tank when viewed from directly above the water.
五 題組
(b) If the rod is absent, and the magnetic field changes with both r and time t as B(r,t) = 2rt, what is the induced electromotive force along the ring?
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