Physics The focal length of a concave mirror with a radius of curvature of 20.0 cm is : 10 cm 20 cm 5 cm 15 cm 10 cm 20 cm 5 cm 15 cm ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is not a valid conservation law of classical physics? Law of conservation of current Law of conservation of angular momentum Law of conservation of energy Law of conservation of charge Law of conservation of current Law of conservation of angular momentum Law of conservation of energy Law of conservation of charge ANSWER DOWNLOAD EXAMIANS APP
Physics Optical Fibre technology works on which of these principles of Physics? Total internal reflection of Light Photoelectric effect Newton's law of Motion Bernoulli's Principle Total internal reflection of Light Photoelectric effect Newton's law of Motion Bernoulli's Principle ANSWER DOWNLOAD EXAMIANS APP
Physics A disk and a sphere of same radius but different masses roll on two inclined planes of the same altitude and length. Which one of the two objects gets to the bottom of the plane first ? Sphere Disk Both reach at the same time Depends on their masses Sphere Disk Both reach at the same time Depends on their masses ANSWER DOWNLOAD EXAMIANS APP
Physics Calculate the time period (in seconds) of a sound wave of wavelength 4m traveling with a speed of 500m/s 1000 0.008 2000 0.016 1000 0.008 2000 0.016 ANSWER DOWNLOAD EXAMIANS APP
Physics Red light has a wavelength of 70 A°. In "nm" it is 0.07 nm 7 nm 700 nm 70 nm 0.07 nm 7 nm 700 nm 70 nm ANSWER DOWNLOAD EXAMIANS APP
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