Q. John Dalton developed the 'Atomic Theory' in

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Q. Charles Goodyear invented the vulcanized rubber in

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Q. Who invented vulcanized rubber?

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Q. Cathode Ray Tube which used cold cathode diode was invented by

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Q. Earliest version of Cathode Ray Tube was invented in

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Q. Scientists who have provided basis for inventing Circuit Breaker are

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Q. Who invented circuit breaker with inspiration from the work of Faraday and Henry is

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Q. First electric 'DC' motor was invented by

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Q. First electric DC motor was invented in

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Q. Integrated circuit was created by two engineers working separately in

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Q. Integrated circuit was co-created by

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Q. Dr. Robert Hutchings Goddard invented the first liquid-fueled rocket in

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Q. Who is known as 'Father Of Modern Rocketry'?

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Q. Device used to determine aircraft direction by using the magnetic field is called

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Q. Device which measure the magnitude and direction of magnetic fields is known as

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Q. Nickel zinc rechargeable battery which is used in digital cameras and cordless telephone was patented in

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Q. Nickel zinc battery which is used in digital cameras and cordless telephone was invented by

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Q. Nuclear Fission was discovered in

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Q. Nuclear fission was discovered in experiment by

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Q. Nuclear power was first used to produce electricity in

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