Who invented the telephone?
Correct answer: D
Alexander Graham Bell is credited with inventing and patenting the first practical telephone in 1876.
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Who invented the electric light bulb (practical incandescent version)?
Correct answer: A
Thomas Edison developed the first commercially practical incandescent electric light bulb.
Who is credited with inventing the World Wide Web?
Correct answer: A
Tim Berners-Lee invented the World Wide Web in 1989 while working at CERN.
Who invented the printing press with movable type in Europe?
Correct answer: C
Johannes Gutenberg invented the printing press with movable type in the 15th century, revolutionizing the spread of information.
Who is credited with inventing dynamite?
Correct answer: D
Alfred Nobel invented dynamite in 1867, and later established the Nobel Prizes using his fortune.
Who invented the steam engine, credited with improvements that powered the Industrial Revolution?
Correct answer: A
James Watt significantly improved the steam engine, playing a key role in powering the Industrial Revolution.
Who is credited with the invention of the airplane, along with his brother, in 1903?
Correct answer: A
The Wright brothers, Orville and Wilbur, are credited with inventing and flying the first successful powered airplane in 1903.
Who discovered penicillin, the first widely used antibiotic?
Correct answer: C
Sir Alexander Fleming discovered penicillin in 1928, marking a major breakthrough in medicine.
Who developed the polio vaccine, greatly reducing the incidence of the disease?
Correct answer: A
Jonas Salk developed the first successful inactivated polio vaccine, introduced in 1955.
Who is credited with developing the smallpox vaccine, an early milestone in immunology?
Correct answer: A
Edward Jenner developed the smallpox vaccine in 1796, laying the foundation for the field of immunology.
Who invented the television?
Correct answer: B
John Logie Baird is credited with demonstrating the first working television system in the 1920s.
Who is credited with inventing radio communication?
Correct answer: C
Guglielmo Marconi is widely credited with developing practical radio communication in the late 19th century.
Who invented the first practical typewriter?
Correct answer: C
Christopher Latham Sholes is credited with inventing the first practical typewriter in the 1860s.
Who invented dynamite-free, safer explosives that led to the development of modern mining, and also established the Nobel Prizes?
Correct answer: D
Alfred Nobel, inventor of dynamite, later used his fortune to establish the Nobel Prizes recognizing achievements benefiting humanity.
Who discovered the element radium, along with Pierre Curie?
Correct answer: A
Marie Curie, along with her husband Pierre Curie, discovered the element radium in 1898.
Who is credited with formulating the periodic table of elements?
Correct answer: D
Dmitri Mendeleev is credited with creating the first widely recognized periodic table of chemical elements in 1869.
Which Indian scientist is known for his contributions to India's space program and is considered its founding figure?
Correct answer: B
Vikram Sarabhai is regarded as the father of the Indian space program, having founded the Indian Space Research Organisation (ISRO).
Which Indian scientist is known as the 'Father of India's Nuclear Programme'?
Correct answer: C
Homi J. Bhabha is regarded as the father of India's nuclear programme, having established the Tata Institute of Fundamental Research.
Who is often called the 'Missile Man of India' for his contributions to India's missile and space technology?
Correct answer: D
Dr. A.P.J. Abdul Kalam, later the 11th President of India, is known as the 'Missile Man of India'.
Who invented the ballpoint pen?
Correct answer: A
Laszlo Biro, a Hungarian journalist, is credited with inventing the modern ballpoint pen in the 1930s.
Who invented the computer mouse?
Correct answer: A
Douglas Engelbart invented the computer mouse in the 1960s, revolutionizing human-computer interaction.
Who is considered the father of the modern computer, having proposed the concept of a programmable machine?
Correct answer: C
Charles Babbage is considered the father of the computer for his design of the Analytical Engine, an early mechanical general-purpose computer.
Who developed the theory of the Analytical Engine's programming, becoming known as the first computer programmer?
Correct answer: A
Ada Lovelace is recognized as the first computer programmer for her work on Charles Babbage's Analytical Engine.
Who discovered the law of gravity after reportedly observing an apple fall from a tree?
Correct answer: D
Sir Isaac Newton is credited with formulating the law of universal gravitation, popularly linked to the story of a falling apple.
Who invented the X-ray, a discovery that transformed medical diagnostics?
Correct answer: D
Wilhelm Conrad Rontgen discovered X-rays in 1895, a breakthrough that revolutionized medical imaging.