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 2R 3R/4 R/2 5R/4 2R 3R/4 R/2 5R/4 ANSWER DOWNLOAD EXAMIANS APP
Physics If you look into a mirror and find that the image (your reflection) is smaller than you, then the type of the mirror is: Concave mirror Plano-concave mirror Convex mirror Plane mirror Concave mirror Plano-concave mirror Convex mirror Plane mirror ANSWER DOWNLOAD EXAMIANS APP
Physics Water is not suitable as a calorimetric substance because it : Low latent heat of vapourization Has high boiling point Has high specific heat Is a good conductor Low latent heat of vapourization Has high boiling point Has high specific heat Is a good conductor ANSWER DOWNLOAD EXAMIANS APP
Physics While ascending a hill, the driver of the vehicle keeps the gear ratio Equal to 1 Less than 1 Either equal to or greater than 1 Greater than 1 Equal to 1 Less than 1 Either equal to or greater than 1 Greater than 1 ANSWER DOWNLOAD EXAMIANS APP
Physics An optically plane surface reflects a beam of light As a parallel beam in one direction As diffused beams in all directions As a diffused beam in one direction As parallel beams in all directions As a parallel beam in one direction As diffused beams in all directions As a diffused beam in one direction As parallel beams in all directions ANSWER DOWNLOAD EXAMIANS APP
Physics A capillary tube is partially dipped vertically in a vessel containing water. Due to capillarity water rises in the tube. The height of water rise in the tube can be increased by None of these Increasing the radius of the capillary tube Increasing the height of water in the vessel Decreasing the radius of the capillary tube None of these Increasing the radius of the capillary tube Increasing the height of water in the vessel Decreasing the radius of the capillary tube ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS