Explanation

vacuum Tubes were replaced by Transistors.

Second-generation computers emerged with the development of Transistors.

The transistor was invented in 1947 by three scientists J. Bardeen, W.H Brattain and W. Shockley.

Explanation

Short-sightedness is caused due to elongation of the eyeball

 It also may result when the curve of the cornea is too steep. 

The messages sent from the retina to the brain are perceived as blurry

Explanation

• Know everything about BRICS: 
• BRICS founded: June 2009
  
• BRICS Member countries: Brazil, Russia, India, China, South Africa, Egypt, Ethiopia, Iran, Saudi Arabia and the United Arab Emirates
  
• BRICS total members: 10 
• South Africa joined BRICS: 2010
• BRICS headquarters: Shanghai, China
• BRICS first conference hosted by: Russia (2009) 

Explanation

The equator passes through 13 countries:

1.      Ecuador,

2.      Colombia,

3.      Brazil,

4.      Sao Tome & Principe,

5.      Gabon,

6.      Republic of the Congo,

7.      Democratic Republic of the Congo,

8.      Uganda,

9.      Kenya,

10.  Somalia,

11.  Maldives,

12.               Indonesia

13.               Kiribati.

ND5-07-2023

Explanation

Negotiations between the nations officially began on October 13, 1962 and resulted in an agreement being signed on 2 March 1963.

It was signed by foreign ministers Chen Yi for the Chinese and Zulfikar Ali Bhutto for the Pakistani.

The eastern tip of the Wakhan Corridor starts the Sino-Pak border between the People's Republic of China and Pakistan spanning about 599KM.

Explanation

When cream is separated from the milk,  the density of the milk increases.

Explanation

• Gadani Beach is situated on the Arabian Sea near the Hub River and Cape Monze in Gadani, Lasbela District, Balochistan, Pakistan.
• It is known for its ship-breaking yard.
• It is one of the largest in the world.
• It is scenic coastal views.

Explanation

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Let the number be x

1/4 of the number = 1/4(x) =x/4

1/3 of the number = 1/3(x) =x/3

1/4 of a number subtracted from 1/3 of the number gives 12.

x/3-x/4 =12

x/3×4/4 - x/4×3/3 =12

4x/12 - 3x/12 =12

(4x-3x)/12=12

4x-3x=12×12

Explanation

Let C's age be x years. Then, B's age = 2x years. A's age = (2x + 2) years.

∴ (2x + 2) + 2x + x = 27

⇒ 5x = 25

⇒ x = 5.

Hence, B's age = 2x = 10 years.

Explanation

The International Business Machines Corporation, nicknamed Big Blue,

is an American multinational technology corporation

operations in over 175 countries.

Headquarters: Armonk, New York, United States

Founders: Herman Hollerith, Charles Ranlett Flint, Thomas J. Watson

Founded: June 16, 1911, Endicott, New York, United States