Physics, 15.02.2021 06:50 mrfishyyyy
A rectangular piece of iron measuring 4 cm by 3cm at 20°C is heated until its temperature increases by 100°C. Calculate the new area of the metal. [Linear expansivity of iron is 1.2×10−5K−1]
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In a series circuit the __ is the same at every point
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Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.
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