Physics Which of the following experiments analyzed the Fraunhofer lines of the solar spectrum? Geiger and Marsdens experiment on scattering of alpha particles Bunsen and Kirchhoff's experiment Lamb-Rutherford experiment Barkla's experiment on scattering of X-rays Geiger and Marsdens experiment on scattering of alpha particles Bunsen and Kirchhoff's experiment Lamb-Rutherford experiment Barkla's experiment on scattering of X-rays ANSWER DOWNLOAD EXAMIANS APP
Physics Radio telescopes are better than optical telescopes because All of these they can detect faint galaxies which no optical telescope can they can work during the day and night they can work even in cloudy conditions All of these they can detect faint galaxies which no optical telescope can they can work during the day and night they can work even in cloudy conditions ANSWER DOWNLOAD EXAMIANS APP
Physics The potential difference between the terminals of an electric heater is 60 V when it draws a current of 4 A from the source. What current will the heater draw if the potential difference is increased to 127.5 V ? 8.5 A 24 A 0.41666666666667 8.5 A 24 A 0.41666666666667 ANSWER DOWNLOAD EXAMIANS APP
Physics A television channel is characterised by Size of picture tube Frequency of transmitted signal Velocity of transmitted signal Physical dimension of television screen Size of picture tube Frequency of transmitted signal Velocity of transmitted signal Physical dimension of television screen ANSWER DOWNLOAD EXAMIANS APP
Physics Two metallic wires made from copper have same length but the radius of wire 1 is half of that of wire 2. The resistance of wire 1 is R. If both the wires are joined together in series, the total resistance becomes R/2 2R 5R/4 3R/4 R/2 2R 5R/4 3R/4 ANSWER DOWNLOAD EXAMIANS APP
Physics A vacuum cleaner works on the principle of pressure difference. On the moon it will Work with increased efficiency Work as efficiently as on the earth Not work at all Work with reduced efficiency Work with increased efficiency Work as efficiently as on the earth Not work at all Work with reduced efficiency ANSWER DOWNLOAD EXAMIANS APP
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