Physics Two metallic plate of equal thickness and coefficient thermal conductivity K1 and K2 put together face to face. A common plate is constructed. What is equivalent K? K1+k2/k1k2 None 2k1k2/k1+k2 K1k2/k1+k2 K1+k2/k1k2 None 2k1k2/k1+k2 K1k2/k1+k2 ANSWER DOWNLOAD EXAMIANS APP
Physics The wavelength at which the peak of intensity of blackbody radiation occurs Decreases with increase in temperature Is the same at all temperatures Does not follow any pattern as temperature changes Increases with increase in temperature Decreases with increase in temperature Is the same at all temperatures Does not follow any pattern as temperature changes Increases with increase in temperature ANSWER DOWNLOAD EXAMIANS APP
Physics Magnetism at the centre of a bar magnet is minimum or maximum zero minimum maximum minimum or maximum zero minimum maximum ANSWER DOWNLOAD EXAMIANS APP
Physics Large astronomical telescopes always use as objective mirror lens None of these combinations of lenses mirror lens None of these combinations of lenses ANSWER DOWNLOAD EXAMIANS APP
Physics Choose the most appropriate answer: Sir CV Raman was awarded Noble Prize for his work connected with which of the following phenomenon of radiation? Polarization Interference Scattering Diffraction Polarization Interference Scattering Diffraction ANSWER DOWNLOAD EXAMIANS APP
Physics In a refrigerator what produces the cooling ? The evaporation of a volatile liquid The ice which deposits on the freezer The sudden expansion of a compressed gas None of these The evaporation of a volatile liquid The ice which deposits on the freezer The sudden expansion of a compressed gas None of these ANSWER DOWNLOAD EXAMIANS APP
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