Physics Echo is heard due to Refraction Scattering Interference Reflection Refraction Scattering Interference Reflection ANSWER DOWNLOAD EXAMIANS APP
Physics A metal ball and a rubber ball, both having the same mass, strike a wall normally with the same velocity. The rubber ball rebounds and the metal ball does not rebound. It can be concluded that Both suffer the same change in momentum The metal ball suffers greater change in momentum The rubber ball suffers greater change in momentum The initial momentum of the rubber ball is greater than that of the metal ball Both suffer the same change in momentum The metal ball suffers greater change in momentum The rubber ball suffers greater change in momentum The initial momentum of the rubber ball is greater than that of the metal ball ANSWER DOWNLOAD EXAMIANS APP
Physics The light rays used for eliminating bacteria X-rays Infrared rays Ultra-violet radiation Microwave radiation X-rays Infrared rays Ultra-violet radiation Microwave radiation ANSWER DOWNLOAD EXAMIANS APP
Physics What is the effective resistance (in Ω) of two resistors 20 Ω and 30 Ω connected in parallel? 36 50 24 12 36 50 24 12 ANSWER DOWNLOAD EXAMIANS APP
Physics Water is not suitable as a calorimetric substance because it : 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 Low latent heat of vapourization Has high boiling point ANSWER DOWNLOAD EXAMIANS APP
Physics During thunderstorm you are travelling in a car. To protect yourself from the lightning you will have to Get out of the car and lie flat in the ground Touch the nearest electric pole Remain in the car Abandon the car and take shelter under a nearby tree Get out of the car and lie flat in the ground Touch the nearest electric pole Remain in the car Abandon the car and take shelter under a nearby tree ANSWER DOWNLOAD EXAMIANS APP
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