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Q. Which of the following measurements is not a unit of distance?
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Q. Which of the following type of mirror is used in the head lights of vehicles
Q. China wares are wrapped in straw paper before packing this is the application of concept of
Q. The speed of light in water is ¾ of that in air. What is the refractive index of water...
Q. Sound becomes hazardous noise pollution at decibels?
Q. The Laser is a beam of radiations which are
Q. The Hydraulic Break works on the principle of ________ .
Q. How much mechanical work must be done to completely melt 1 gram of ice at 0°C ?
Q. Mica is used in electrical appliances such as electric iron because mica is
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