Question : Who co-invented the device called Cyclotron in 1934 along with Ernest Lawrence to investigate the nuclear structure?
Option 1: Joseph John Thomson
Option 2: Ernest Rutherford
Option 3: Milton Stanley Livingston
Option 4: Enrico Fermi
Correct Answer: Milton Stanley Livingston
Solution : The correct answer is Milton Stanley Livingston.
American accelerator physicist Milton Stanley Livingston shared co-invention credit for the cyclotron with Ernest Lawrence and co-discovered the strong focusing principle with Ernest Courant and Hartland Snyder, which paved the way for the creation of large-scale particle accelerators of the modern era.
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Question : Which is the most suitable unit for expressing nuclear radius?
Option 1: Micron
Option 2: Nanometre
Option 3: Fermi
Option 4: Angstrom
Question : Who among the following invented a device called PM 2.5 which when fitted near the silencer pipe in vehicles will curb air pollution?
Option 1: Debayan Saha
Option 2: Deepak Gupta
Option 3: Nikesh Arora
Option 4: Asha Sharma
Question : The discovery and understanding of electromagnetic induction is based on a long series of experiments carried out by ______.
Option 1: Planck and Fermi
Option 2: Einstein
Option 3: Faraday and Henry
Option 4: Rutherford
Question : Who amongst the following invented the 'chronometer'?
Option 1: John Harrison
Option 2: William Harver
Option 3: Friese Greene
Option 4: Robert Koch
Question : Which of the following is used as the primary memory of a computer?
Option 1: Optical storage device
Option 2: Magnetic storage device
Option 3: RAM
Option 4: Magnetic-Optical storage device
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