A. Both free electrons and holes B. Neither free electrons nor holes C. Free electrons only D. Free holes only
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A. Energy B. Angular momentum C. Charge D. None of these
A. Refractive index B. Poison’s ratio C. Relative density D. Gravitational constant
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A. Potential energy B. Kinetic energy C. Acceleration D. None of these
A. Rarer to rarer medium B. Rarer to denser medium C. Denser to denser medium D. Denser to rarer medium
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A. Semiconductor B. Insulator C. Conductor D. Dielectric
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A. Decreases B. Increases C. Remains unchanged D. Cannot be predicted
A. An upward velocity B. Downward velocity C. An upward acceleration D. A downward acceleration
A. Centrifugal B. Gravitational C. Centripetal D. Electro-magnetic force
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A. Unchanged B. Halved C. Doubled D. Quadrupled