Physics - Single MCQs (Page 9)

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Q81. Which of the following is used to split white light into different colours...Q82. A kilowatt-hour is unit of...Q83. The hydraulic brakes used in automobiles is a direct application of...Q84. Laser is a device to produce...Q85. Speed of sound is the greatest in...Q86. "Curie" is unit of...Q87. Ultra violet radiations of the Sun do not reach the earth because, earth's atmos...Q88. The method of protecting iron from rusting, by coating a thin layer of Zinc is c...Q89. What is the maximum value of deforming force up to which a material shows elasti...Q90. When the speed of car is doubled, then what will be the braking force of the car...