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Matter In Our Surroundings MCQ Class 09

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Matter In Our Surroundings MCQ Class 09 #JSunilTutorial  1. Camphor is purified by the process of – a. evaporation b. distillation c. sublimation d. filtration 2. LPG is used in the kitchens in our homes in the- a. Solid form b. compressed form c. gaseous form d. none. 3. Which of the following is not fluid - a. water, b. air, c. sand, d. sharbat? 4. On Kelvin scale 0oC is equal to – a. 273 K b. -273 K c. 0 K d. 100 K 5. SI unit of temperature is - a. Kelvin b. Celsius c. Fahrenheit d. Pascal
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(Download) CBSE Class X Science Guess Paper 2011-2012

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Guess Paper – 2012 Class – X Subject – Physics Name one physical condition on which resitivity of metal depends?  What is the resistance of an electric lamp if it uses 20A when connected to a 220 V?  Why is an ammeter likely to burn out when connected in parallel?  Define current and give its SI unit.  What is SI unit of potential?  Relate1 J and 1V.  Define resistivity and give its SI unit?  When length of a wire is doubled, what is changed in resistivity?  Write the least and maximum possible value that can be obtained when resistors of 2, 3, and 5 ohm are used.  Define electric power and give its SI unit.  What is commercial unit of electric power?  Name the material used for filament of heater.  What type of connection is used in our house wiring?  How is voltmeter connected in circuit?  Why series arrangement is is not used in house wiring? SHORT ANSWERS
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