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Important Questions on Work, Energy and Power

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A person throws two fair dice. He wins Rs. 15 for throwing a doublet (same numbers on the two dice), wins Rs 12 when the throw results in the sum of 9 , and loses Rs. 6 for any other outcome on the throw. Then the expected gain/loss (in Rs.) of the person is:
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In a physical balance working on the principle of moments, when 5 mg weight is placed on the left pan, the beam becomes horizontal. Both the empty pans of the balance are of equal mass. Which of the following statements is correct?
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If the potential energy between two molecules is given by U=Ar6-Br12, then at equilibrium, separation between molecules, and the potential energy are:
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Simple two neuron reflex arc involves
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Third ventricle is present in -
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Path of reflex action is
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Consider the following statements with two blanks X and Y and select the option which correctly fills up these blanks?

In the centre of the inter vertebral disc, a soft area is present called___X__. Which is supposed to be remnant of___Y__.
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In the anatomy of man aqueduct of Sylvius occurs in which of the following?
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The _____ occupies the major portion of the brain.
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What is corpus callosum?
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What is true about the limbic system?
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Breathing is controlled by
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An oval mass of white mater, present above the medulla oblongata acts as
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Conditioned reflexes are different from unconditioned reflexes in that
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Which of the following is a motor nerve?
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The peripheral nervous system is divided into two divisions called A and B. A relays impulses from the CNS to skeletal muscles while the B transmits impulses from the CNS to the involuntary organs and smooth muscles of the body. B is further classified into C and D neural system.
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Reflex action in a vertebrate is an essential display exhibited by
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In which part of the following, the vomiting centre is situated?
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A man is admitted to a hospital. He is suffering from abnormally low body temperature, loss of appetite, and extreme thirst. His brain scan would probably show a tumor in the
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Parkinsonism is related with