Physics The focal length of a concave mirror with a radius of curvature of 20.0 cm is : 10 cm 5 cm 20 cm 15 cm 10 cm 5 cm 20 cm 15 cm ANSWER DOWNLOAD EXAMIANS APP
Physics Anemometer is an instrument meant for measuring ________ Velocity Air masses Temperature Wind speed Velocity Air masses Temperature Wind speed ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following celestial bodies contains abundant quantities of helium-3, a potential source of energy ? Saturn Earth Moon Venus Saturn Earth Moon Venus ANSWER DOWNLOAD EXAMIANS APP
Physics Working of safety fuses depends upon1. magnetic effect of the current2. chemical effect of the current3. magnitude of the current4. heating effect of the currentSelect the correct answer using the code given below. 3 and 4 only 1, 2 and 3 only 1, 2, 3 and 4 4 only 3 and 4 only 1, 2 and 3 only 1, 2, 3 and 4 4 only ANSWER DOWNLOAD EXAMIANS APP
Physics Soap bubble attains spherical shape due to ________ Viscosity Inertia Pressure Surface tension Viscosity Inertia Pressure Surface tension ANSWER DOWNLOAD EXAMIANS APP
Physics The speed of light in air is 8 × 103 m/s 3 × 108 m/s Infinity 3 × 10–8 m/s 8 × 103 m/s 3 × 108 m/s Infinity 3 × 10–8 m/s ANSWER DOWNLOAD EXAMIANS APP
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