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Consider a one-dimensional motion of a particle with total energy E. There are four regions A, B, C and D is which the relation between potential energy U, kinetic energy (K) and total energy E is as given below RegionA:`UgtE` Region B:`UltE` Region C:`KltE` Region D:`UgtE` State with reason in each case whether a particle can be found in the given region or not.A. Region AB. Region BC. Region CD. Region D |
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Answer» Correct Answer - A Total energy of the particle = Kinetic energy + Potential energy E = K+ V or K=E-V Since kinetic energy can never be negative. The particle cannot be found in the region where its kinetic energy would become negative In region A, V gt E `therefore` K becomes negative in this region. Hence, the particle cannot be found in region A. |
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