Physics The focal length of a concave mirror with a radius of curvature of 20.0 cm is : 15 cm 10 cm 5 cm 20 cm 15 cm 10 cm 5 cm 20 cm ANSWER DOWNLOAD EXAMIANS APP
Physics A tennis ball machine serves a ball vertically into the air from a height of 2 feet, with an initial speed of 110 feet per second. After how many seconds does the ball attain its maximum height? 2.87 sec 4.65 sec 5.41 sec 3.44 sec 2.87 sec 4.65 sec 5.41 sec 3.44 sec ANSWER DOWNLOAD EXAMIANS APP
Physics When a bullet is fired from a gun The gun moves forward The gun recoils with the same momentum as the bullet The gun does not move The gun jumps up The gun moves forward The gun recoils with the same momentum as the bullet The gun does not move The gun jumps up ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following has the highest frequency? Radio waves X-rays Microwaves Cosmic rays Radio waves X-rays Microwaves Cosmic rays ANSWER DOWNLOAD EXAMIANS APP
Physics Solar cells work on the principle of Photovoltaic effect Photosynthesis Photoelectric effect Photoconductive effect Photovoltaic effect Photosynthesis Photoelectric effect Photoconductive effect ANSWER DOWNLOAD EXAMIANS APP
Physics The motion of a freely falling body is an example of ________ motion. Constant speed Uniformly accelerated Constant velocity Non-uniformly accelerated Constant speed Uniformly accelerated Constant velocity Non-uniformly accelerated ANSWER DOWNLOAD EXAMIANS APP