Physics Stars twinkle because the intensity of light emitted by them changes with time. the distance of the stars from the earth changes with time. None of these the refractive index of the different layers of the earth's atmosphere ch the intensity of light emitted by them changes with time. the distance of the stars from the earth changes with time. None of these the refractive index of the different layers of the earth's atmosphere ch ANSWER DOWNLOAD EXAMIANS APP
Physics Which among the following is the fundamental quantity ? Force Velocity Volume Time Force Velocity Volume Time ANSWER DOWNLOAD EXAMIANS APP
Physics When two similar sources vibrate with slightly different frequencies, a regular rise and fall occurs in the loudness of tone. This phenomenon is known as Echo Resonance Beats Doppler effect Echo Resonance Beats Doppler effect ANSWER DOWNLOAD EXAMIANS APP
Physics The Capacity of a communication channel is measured in Bit capacity Data flow Band width Band rate Bit capacity Data flow Band width Band rate ANSWER DOWNLOAD EXAMIANS APP
Physics A person lifts luggage of 20 kg from the ground and puts it on his head 2m above the ground. Calculate the work done by him. (g = 10 ) 200J 40J 20 J 400J 200J 40J 20 J 400J ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following experiments analyzed the Fraunhofer lines of the solar spectrum? Bunsen and Kirchhoff's experiment Barkla's experiment on scattering of X-rays Geiger and Marsdens experiment on scattering of alpha particles Lamb-Rutherford experiment Bunsen and Kirchhoff's experiment Barkla's experiment on scattering of X-rays Geiger and Marsdens experiment on scattering of alpha particles Lamb-Rutherford experiment ANSWER DOWNLOAD EXAMIANS APP
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