Inventions — Set 1
Physics · आविष्कार · Questions 1–10 of 60
Who is credited with the invention of the barometer?
Correct Answer: C. Evangelista Torricelli
Evangelista Torricelli invented the barometer in 1643. This device is used to measure atmospheric pressure by monitoring the height of a mercury column. It provided the first experimental evidence of a vacuum in nature.
Which scientist developed the first practical battery, known as the voltaic pile?
Correct Answer: D. Alessandro Volta
Alessandro Volta created the first chemical battery around the year 1800. It consisted of alternating layers of zinc and copper separated by brine-soaked cloth. This invention laid the groundwork for the study of electrochemistry.
The invention of the lightning rod is attributed to which historical figure?
Correct Answer: C. Benjamin Franklin
Benjamin Franklin invented the lightning rod to protect buildings from lightning strikes. The device works by providing a low-resistance path for electricity to reach the ground safely. His kite experiment confirmed the electrical nature of lightning.
Which instrument was invented by Wilhelm Roentgen in 1895?
Correct Answer: A. The X-ray Machine
The correct answer is 'The X-ray Machine'. Wilhelm Roentgen discovered X-rays and developed the first X-ray imaging technology. He observed that these rays could pass through solid objects and human tissue. He received the first Nobel Prize in Physics for this monumental discovery.
Who designed the first successful reflecting telescope?
Correct Answer: A. Isaac Newton
Isaac Newton built the first reflecting telescope to solve the problem of chromatic aberration. It used a curved primary mirror instead of a lens to collect light. This design remains the standard for most modern large telescopes today.
The safety elevator, which prevented the car from falling if the cable broke, was invented by?
Correct Answer: A. Elisha Otis
Elisha Otis demonstrated the first safety elevator in 1854 by cutting the hoisting rope. The automatic braking mechanism ensured the platform remained securely in place. This invention made the construction of high-rise skyscrapers practically possible.
Who is known for inventing the first practical incandescent light bulb?
Correct Answer: D. Thomas Edison
Thomas Edison perfected the long-lasting incandescent light bulb using a carbon filament. He established a system of electrical power distribution to make lighting commercially viable. His lab in Menlo Park became a famous center for industrial research.
The invention of the mercury thermometer is credited to?
Correct Answer: C. Daniel Gabriel Fahrenheit
Daniel Gabriel Fahrenheit developed the mercury thermometer and the Fahrenheit temperature scale. Mercury was chosen because it expands and contracts linearly with temperature changes. His work provided a standard method for precise temperature measurement globally.
Who invented the first practical steam engine that contributed to the Industrial Revolution?
Correct Answer: C. James Watt
James Watt significantly improved Thomas Newcomen's earlier design by adding a separate condenser. This modification greatly increased the efficiency and power of the steam engine. It served as the primary power source for factories and mines.
Which scientist is responsible for the invention of the wireless telegraphy system?
Correct Answer: C. Guglielmo Marconi
Guglielmo Marconi developed the first successful system for long-distance radio communication. He utilized electromagnetic waves to transmit signals across the Atlantic Ocean. This technology evolved into modern radio and wireless telecommunications systems.