Physics Ozone layer in the outer atmosphere helps us in Absorbing cosmic ray particles Reflecting radio waves and makes radio communication possible Regulating the temperature of atmosphere Absorbing UV radiations Absorbing cosmic ray particles Reflecting radio waves and makes radio communication possible Regulating the temperature of atmosphere Absorbing UV radiations ANSWER DOWNLOAD EXAMIANS APP
Physics What colour does blue and yellow make? Green Red Black White Green Red Black White ANSWER DOWNLOAD EXAMIANS APP
Physics The pitch of sound depends on its Intensity Velocity Frequency Amplitude Intensity Velocity Frequency Amplitude ANSWER DOWNLOAD EXAMIANS APP
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 Which one of the following instruments is used to study dispersion of light ? Spectrometer Photometer Microscope Telescope Spectrometer Photometer Microscope Telescope ANSWER DOWNLOAD EXAMIANS APP
Physics A potentiometer wire is 100 cm long and a constant potential difference is maintained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obtained at 50 cm and 10 cm from the positive end of the wire in the two cases. The ratio of the emf's is : 0.12638888888889 0.20902777777778 0.12777777777778 0.21111111111111 0.12638888888889 0.20902777777778 0.12777777777778 0.21111111111111 ANSWER DOWNLOAD EXAMIANS APP
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