On which principle does the hydraulic lift works? वचालत लट कस सांत पर कायकरती है? Options: 1) Newton's law यूटन केसांत 2) Pascal's law पाकल केसांत 3) Archimedes's law आकमडज़ केसांत 4) Joule's law जलूकेसांत


Which one among the following is a main system board of a computer? िनिलखत मसेकौन सा एक संगणक या कूटर का मु िनकाय है? Options: 1) CPU सी.पी.यू 2) Keyboard कीबोड 3) Microchip माइोिचप 4) Mother board मदरबोड

Correct Answer: Mother boardA computer runs on three major systems; hardware, software, and humanware. Hardware and software exist together to make up the actual device. The human comes into the picture to bring the whole computer into a functional existence. A Mother board  main...Read more

What is the minimum distance (in metres) required to hear an echo? ितिन सुननेके िलए ूनतम दू री (मीटर म) िकतनी होनी चािहए? Options: 1) 10 2) 13 3) 17 4) 21

Correct Answer: 17The velocity of sound in dry air is approximately 343 m/s at a temperature of 25 °C. Therefore, the reflecting object must be more than 17.2m from the sound source for echo to be perceived by a person located at the source....Read more