Physics A parallel-plate capacitor,with air in between the plates, has capacitance C. Now the space between the two plates of the capacitor is filled with a dielectric of dielectric constant 7. Then the value of the capacitance will become C/7 C 7C 14C C/7 C 7C 14C ANSWER DOWNLOAD EXAMIANS APP
Physics The propagation of sound waves in a gas involves Adiabatic compression and rarefaction Isothermal compression and rarefaction Isochoric compression and rarefaction Isobaric compression and rarefaction Adiabatic compression and rarefaction Isothermal compression and rarefaction Isochoric compression and rarefaction Isobaric compression and rarefaction ANSWER DOWNLOAD EXAMIANS APP
Physics What should a person on a freely rotating turn table do to decrease his (angular) speed ? Sit down with raised hands Raise his hands up Bring his hands together Spread his hands outwards Sit down with raised hands Raise his hands up Bring his hands together Spread his hands outwards ANSWER DOWNLOAD EXAMIANS APP
Physics Heavy water is used in nuclear reactor to Absorb neutron Slow down neutron Increase speed of neutron Increase temperature Absorb neutron Slow down neutron Increase speed of neutron Increase temperature ANSWER DOWNLOAD EXAMIANS APP
Physics For which of the following substances, the resistance decreases with increase in temperature? Pure silicon Copper Nichrome Platinum Pure silicon Copper Nichrome Platinum ANSWER DOWNLOAD EXAMIANS APP
Physics When hot liquid is poured into a thick glass tumbler, it cracks because glass : Has low temperature coefficient of expansion Is a bad conductor of heat so only inner surface expands Has high temperature coefficient of expansion Has a very low specific heat Has low temperature coefficient of expansion Is a bad conductor of heat so only inner surface expands Has high temperature coefficient of expansion Has a very low specific heat ANSWER DOWNLOAD EXAMIANS APP
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