Physics The energy of a photon varies directly with its Speed Wave length Frequency None of these Speed Wave length Frequency None of these ANSWER DOWNLOAD EXAMIANS APP
Physics In which one of the following the phenomenon of total internal reflection of light is used ? Formation of mirage Formation of rainbow Twinkling of stars Working of binoculars Formation of mirage Formation of rainbow Twinkling of stars Working of binoculars ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following are used for accurately measuring very small time intervals ? Quartz clocks Pulsars White dwarfs Atomic clocks Quartz clocks Pulsars White dwarfs Atomic clocks ANSWER DOWNLOAD EXAMIANS APP
Physics If an electron and a photon have the same wavelength, then they will have the same Linear momentum Energy Angular momentum Velocity Linear momentum Energy Angular momentum Velocity ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is the fastest communication channel? Optical fiber Radio wave Microwave All are operating at nearly the same propagation speed Optical fiber Radio wave Microwave All are operating at nearly the same propagation speed 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 : 0.12777777777778 0.20902777777778 0.12638888888889 0.21111111111111 0.12777777777778 0.20902777777778 0.12638888888889 0.21111111111111 ANSWER DOWNLOAD EXAMIANS APP
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