Physics When water freezes its density Remains constant Becomes Zero Increases Decreases Remains constant Becomes Zero Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is the cleanest source of energy? Wind energy Fossil fuel Nuclear power Biofuel Wind energy Fossil fuel Nuclear power Biofuel ANSWER DOWNLOAD EXAMIANS APP
Physics X–rays are Positively charged particles None of these Neutral particles Negatively charged particles Positively charged particles None of these Neutral particles Negatively charged particles ANSWER DOWNLOAD EXAMIANS APP
Physics A solid ball of metal has a spherical cavity inside it. When the ball is heated the volume of the cavity will Have its shape changed Increase Decrease Remain unaffected Have its shape changed Increase Decrease Remain unaffected ANSWER DOWNLOAD EXAMIANS APP
Physics A metal plate with a circular hole at the centre is heated. What will happen to the area of the hole ? Dacrease Increase Remain constant Will increase first and then dcrease Dacrease Increase Remain constant Will increase first and then dcrease ANSWER DOWNLOAD EXAMIANS APP
Physics Radio waves sent out by a radio stations are reflected by Ionosphere Mesosphere Troposphere Stratosphere Ionosphere Mesosphere Troposphere Stratosphere ANSWER DOWNLOAD EXAMIANS APP
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