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 3R/4 R/2 5R/4 2R 3R/4 R/2 5R/4 2R ANSWER DOWNLOAD EXAMIANS APP
Physics Energy of Ultraviolet rays is great than Gamma rays Infrared rays Cosmic rays X-rays Gamma rays Infrared rays Cosmic rays X-rays ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is a compound machine? Knife Bicycle Screw Ramp Knife Bicycle Screw Ramp ANSWER DOWNLOAD EXAMIANS APP
Physics A circular plate, a cube and a sphere, all made up of same material and having the samemass, are heated to 300°C and left in a room. Which of them will have the slowest rate of cooling? All will cool at the same rate Circular plate Cube Sphere All will cool at the same rate Circular plate Cube Sphere ANSWER DOWNLOAD EXAMIANS APP
Physics What type of lens is a magnifying glass? Spherical Diverging Converging Achromatic Spherical Diverging Converging Achromatic ANSWER DOWNLOAD EXAMIANS APP
Physics Steel is more elastic than rubber because it : Is harder than rubber Is never deformed Requires larger deforming force Is deformed very easily Is harder than rubber Is never deformed Requires larger deforming force Is deformed very easily ANSWER DOWNLOAD EXAMIANS APP
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