Class 10 Science FA1admin2021-08-25T22:09:25+05:30Welcome to your Class 10 Test Name Class 1. A wire of length /, made of material resistivity ρ is cut into two equal parts. The resistivity of the two parts are equal to,ρρ22 ρ4 ρ2. The temperature of a conductor is increased. The graph best showing the variation of its resistance is3. A battery of 10 volt carries 20,000 C of charge through a resistance of 20 Ω. The work done in 10 seconds is2 × 103 joule2 × 105joule2 × 104 joule2 × 102 joule4. A boy records that 4000 joule of work is required to transfer 10 coulomb of charge between two points of a resistor of 50 Ω. The current passing2 A4 A8 A16 A5. One of the following processes does not involve a chemical reaction. That is:Melting of candle wax when heatedBurning of candle wax when heatedDigestion of food in our stomachRipening of banana6. It is necessary to balance a chemical equation in order to satisfy the law of:Conservation of motionConservation of momentumConservation of energyConservation of mass7. Rusting of iron involves a chemical reaction which is a combination of:Reduction as well as combination reactionsOxidation as well as combination reactionsReduction as well as displacement reactionsOxidation as well as displacement reactions8. The vein which brings clean blood from the lungs into the heart is known as:Pulmonary veinHepatic veinSuperior vena cavaPulmonary artery9. Movement of the synthesized products from the leaves to the roots and other parts of a plant’s body takes place through the phloem. This process is known as:TranslocationTranspirationTransportationExcretion10. The process of diffusion of solvent particles from the region of less solute concentration to a region of high solute concentration through semi-permeable membrane is known asDiffusionOsmosisTranslocationTranspiration11 out of 10
