Physics The force of friction between two surfaces will increase if: Air gap is created between the two surfaces Irregularities on both the surfaces are removed A layer of lubricant is kept between the two surfaces The two surfaces are pressed harder Air gap is created between the two surfaces Irregularities on both the surfaces are removed A layer of lubricant is kept between the two surfaces The two surfaces are pressed harder ANSWER DOWNLOAD EXAMIANS APP
Physics A convex mirror of focal length f (in air) is immersed in a liquid (u=4/3). The focal length of the mirror in the liquid will be : (7/3)f (3/4)f F (4/3)f (7/3)f (3/4)f F (4/3)f ANSWER DOWNLOAD EXAMIANS APP
Physics The phenomenon of light associated with the appearance of blue colour of the sky is Interference Scattering Refraction Reflection Interference Scattering Refraction Reflection ANSWER DOWNLOAD EXAMIANS APP
Physics Solids which conduct electricity at higher temperature but not at lower temperature are called Super-conductor Semi-conductor Insulator Metallic-conductor Super-conductor Semi-conductor Insulator Metallic-conductor ANSWER DOWNLOAD EXAMIANS APP
Physics Velocity of sound in air does not change with the change of Pressure of air Moisture content in air Wind in the direction of propagation of sound Temperature of air Pressure of air Moisture content in air Wind in the direction of propagation of sound Temperature of air ANSWER DOWNLOAD EXAMIANS APP
Physics The plastic material commonly used for making gear wheels is Polyesters Bakelit Polystyrene Nylons Polyesters Bakelit Polystyrene Nylons ANSWER DOWNLOAD EXAMIANS APP
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