Physics In which one of the following the phenomenon of total internal reflection of light is used ? Twinkling of stars Formation of mirage Working of binoculars Formation of rainbow Twinkling of stars Formation of mirage Working of binoculars Formation of rainbow ANSWER DOWNLOAD EXAMIANS APP
Physics In a conductor The forbidden energy gap is very narrow There is no conduction band The valence band and the conduction band overlap each other The forbidden energy gap is very wide The forbidden energy gap is very narrow There is no conduction band The valence band and the conduction band overlap each other The forbidden energy gap is very wide ANSWER DOWNLOAD EXAMIANS APP
Physics Minimum number of unequal vectors which can give zero resultant are more than four three two four more than four three two four ANSWER DOWNLOAD EXAMIANS APP
Physics Which determines the frequency of a sound wave? Source Medium Speed Amplitude Source Medium Speed Amplitude ANSWER DOWNLOAD EXAMIANS APP
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 14C 7C C C/7 14C 7C C C/7 ANSWER DOWNLOAD EXAMIANS APP
Physics In the gamma decay of a nucleus Both the mass number and the atomic number of the nucleus change Neither the mass number nor the atomic number of the nucleus changes The mass number of the nucleus changes whereas its atomic number does not change The mass number of the nucleus does not change whereas its atomic number changes Both the mass number and the atomic number of the nucleus change Neither the mass number nor the atomic number of the nucleus changes The mass number of the nucleus changes whereas its atomic number does not change The mass number of the nucleus does not change whereas its atomic number changes ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS