Miscellaneous (Part -2)

51. Isaac Newton invented ________ . [S.S.C. Online CHSL (T-1) 21.01.2017 (Shift-11)]

(a) Thermometer
(b) Reflecting Telescope
(c) Hydraulic Accumalator
(d) Transistor

Correct Answer: (b) Reflecting Telescope

Solution:The Newtonian telescope also called the Newtonian reflector or just the Newtonian, is a type of reflecting telescope invented by the English scientist Sir Isaac Newton (1642-1727), using a concave primary mirror and a flat diagonal secondary mirror.

52. Who invented Neon Lamp? [S.S.C. Online CHSL (T-1) 23.01.2017 (Shift-1)]

(a) Vint Cerf
(b) David Chaum
(c) Georges Claude
(d) Josephine Cochrane

Correct Answer: (c) Georges Claude

Solution:The French engineer, chemist, and inventor Georges Claude, was the first person to apply an electrical discharge to a sealed tube of neon gas (circa 1902) to create a lamp.

Georges Claude displayed the first neon lamp to the public on December 11, 1910, in Paris.

53. Electric chair was invented by________. [S.S.C. Online CHSL (T-1) 9.01.2017 (Shift-III)]

(a) Alfred P. Southwick
(b) Isaac Singer
(c) Murasaki Shikibu
(d) Hanaoka Seish

Correct Answer: (a) Alfred P. Southwick

Solution:Alfred P. Southwick was an American dentist who witnessed an accidental electrocution and began to explore the potential of electricity as a more humane method of execution than hanging.

He played a significant role in the development and advocacy for the electric chair, which was first used for capital punishment in New York in 1890.

54. ________is a measure of the actual amount of water vapour in a particular sample of air, measured as a partial pressure. [S.S.C. Online CHSL (T-1) 27.01.2017 (Shift-II)]

(a) Specific Humidity
(b) Absolute Humidity
(c) Relative Humidity
(d) Dew Point

Correct Answer: (b) Absolute Humidity

Solution:Absolute humidity is a measure of the actual amount of water vapor in a particular sample of air, measured as partial pressure.

The absolute humidity in the atmosphere is about 30 grams per cubic meter when the air is saturated at 30 °C.

55. Instrument for measuring blueness of the sky or ocean is called _______ . [S.S.C. Online CHSL (T-1) 1.02.2017 (shin-11)]

(a) Bathymeter
(b) Ceraumograph
(c) Cyanometer
(d) Barometer

Correct Answer: (c) Cyanometer

Solution:A cyanometer is an instrument that measures the intensity of the blue color of the sky.

It typically consists of a series of color swatches of increasing shades of blue, which are compared to the sky or ocean to determine the closest match.
This can provide information about atmospheric conditions, such as the amount of dust or moisture in the air.

56. Electroscope was invented by__________. [S.S.C. Online CHSL (T-1) 11.01.2017 (Shift-1)]

(a) Jean-Antoine Nollet
(b) Alfred Noble
(c) Joseph Nicephore Niepce
(d) Ted Nelson

Correct Answer: (a) Jean-Antoine Nollet

Solution:Jean-Antoine Nollet was a French clergyman and physicist who is credited with inventing the electroscope in 1746.

This early scientific instrument was designed to detect the presence and magnitude of electric charge on a body.
His invention was crucial for early experiments in the field of electricity.

57. Who invented cinematography? [S.S.C. Online CHSL (T-1) 27.01.2017 (Shift-III)]

(a) William Freeze-Green
(b) Arthur Fry
(c) Gordon Gould
(d) Otto von Guericke

Correct Answer: (a) William Freeze-Green

Solution:William Freeze Green invented cinematography.

Cinematography refers to the art of capturing images on film or, more commonly today, as digital files.

58. Venn diagram was invented by- [S.S.C. Online CHSL (T-I) 8.02.2017 (Shift-II)]

(a) Lucien Vidi
(b) John Venn
(c) Theophilus Van Kenel
(d) Lewis Urry

Correct Answer: (b) John Venn

Solution:John Venn was a British logician and philosopher who introduced the Venn diagram in an 1880 paper titled "On the Diagrammatic and Mechanical Representation of Propositions and Reasonings" in the Philosophical Magazine and Journal of Science.

These diagrams use overlapping circles or other closed curves to illustrate the relationships between sets.
They have become a fundamental tool in set theory, logic, statistics, and computer science.

Venn Diagrams' History and Popularity Outside of Math Explained | Scientific American