Physics Practice Questions – Unit and Measurement
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Q1. In the following which is the fundamental physical quantity ? (a) Force (b) Velocity (c) Electric Current (d) Work
Q2. The Unit of electric power is – (a) Joule (b) Volt (c) Watt (d) Coulomb
Q3. The SI unit of electrical resistivity of conductor is – (a) Faraday (b) Ohm (c) Ampere (d) Ohm-meter
Q4. The SI unit of activity of radio active substance ? (a) Becquerel (b) Curie (c) Radian (d) Dyne
Q5. One nanometre is equal to – (a) 10-6 cm (b) 10-7 cm (c) 10-8 cm (d) 10-9 cm
Q6. In SONAR, we use – (a) Radio waves (b) Audible sound waves (c) Ultrasonic waves (d) Infrasonic waves
Q7. Which of the following is not correctly matched – (a) Voltmeter – Potential difference (b) Ammeter – Electric current (c) Pyrometer – Velocity of wind (d) Galvanometer – Electric Resistance
Q8. The thermometer which used to measure 2000o temperature is – (a) Gas thermometer (b) Mercury thermometer (c) Radiation thermometer (d) Thermo-electric thermometer
Q9. ‘Pyrheliometer’ is used for measuring – (a) Sun spots (b) Solar radiation (c) Air temperature (d) Temperature of plants
Q10. What is measured by manometer ? (a) Air pressure (b) Pressure of gas (c) Density of liquids (d) Pressure of oil on the surface
Remember : 01 Horsepower = 746 watt, 01 Barrel Oil = 159 litre, 01 Bar = 105 Pascal, Knot, Nautical Mile, Cusec, NTU, SONAR ‘Sound Navigation and Ranging’ using Ultrasonic waves, RADAR ‘Radio Detection and Ranging’ using Radio wave, Radiation thermometer also know as Pyrometer,
Answer : 1 (c), 2 (c), 3 (d), 4 (a), 5 (b), 6 (c), 7 (c), 8 (c), 9 (b), 10 (b), 11 (), 12 (), 13 (), 14 (), 15 (), 16 (), 17 (), 18 (), 19 (), 20 (), 21 (), 22 (), 23 (), 24 (), 25 (), 26 ()
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Explanation :
General Science | Quiz
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