Question Discussion & Solution

The correct answer is Vitamin A.

• Vitamin A causes Night Blindness.

Key Points

• Night blindness is a type of vision impairment also known as nyctalopia. People with night blindness experience poor vision at night.
• Vitamin was first invented by FG Hopkins.  However, the term vitamin was coined by C Funk. 
• Good sources of vitamin A include cheese, eggs oily fish.

Additional Information

• Vitamin B₁₂ deficiency may lead to a reduction in healthy red blood cells (anaemia). 
• Vitamin C is found in citrus fruits and vegetables.
  • Scurvy results from a deficiency of vitamin C in the diet.
• The signs and symptoms of vitamin D deficiency include Fatigue, Bone pain, muscle weakness, muscle aches, or muscle cramps.
  • Rickets is caused due to deficiency of vitamin D
• Vitamin E deficiency can cause nerve and muscle damage loss of body movement control, muscle weakness, and vision problems.

The correct answer is Governor of Rajasthan.

• The Governor of Rajasthan is the President of West Zone Culture Center, Udaipur.

Key Points

• West Zone Culture Center, Udaipur:
  • The Zonal Cultural Centres were developed in order to promote, develop and link the various arts with people living in urban, rural, and tribal areas of India. 
  • The headquarters of the West Zone Culture Center is located in the Bagore-Ki-Haveli, Udaipur.
  • It was established in 1986-1987.
  • The Governor of Rajasthan is the  President of West Zone Culture Center, Udaipur.
  • Kalraj Mishra is the Governor of Rajasthan

Additional Information

• The Governor:
  • The Governor is the Constitutional Head of the State and the same Governor can be appointed as Governor of more than one State (Articles 153 and 154).
  • He is appointed by the President under his hand and seal.
  • He has no fixed tenure and stays in power at the pleasure of the president.

The correct answer is Karauli.

• The princely state of Karauli was founded by the Yaduvanshi ruler Arjun Singh under the name Kalyanpuri in Vikram Samvat 1405 (1348 AD), which later became Karauli in the period.

Key Points

• The ruler of Karauli, Harvakshpal Singh, made a treaty with the British.
• Karauli was the first princely state of Rajasthan, which made the first treaty with the British.
• Anjani Mata is the local deity of the princely state of Karauli.

Additional Information

• Karauli State was a princely state in India.
  • It existed from 1348 to 1949.
  • It is located in the Braj region.
  • Its capital was Karauli city.
• The important towns associated were Mandrayal or Mandrail.
• The 32nd district of Karauli Rajasthan was created on 19 July 1997, separated from Sawai Madhopur.
• Ramgopal Vijayvargiya was a well-known painter from Karauli, who started the solo painting exhibition tradition.

Important Points

• Lootmar Holi / Lathmar Holi of Mahavir Ji (Karauli) is very famous.
• Shivaratri Cattle Fair - This fair starts on Phalgun Krishna Trayodashi.
  • This fair is famous for the purchase and sale of cows of the Haryanvi breed.

Concept:

Newtons Third Law of Motion

• Every action has an equal and opposite reaction. Action and reaction forces act on different bodies. 

Explanation:

• Considering an example, A bullet is fired from a gun.
• The gun applies force to a bullet and the bullet applies force on the gun. 
• If we consider the gun as the only object, it gives recoil which is the reaction force applied by it on the bullet. 
• So action force is a force on bullet and reaction force is applied on the gun. 
• Both forces are not on the same object hence the action and reaction forces cannot balance each other. 

So, 'do not act on the same body.' is the correct option. 

The correct answer is Charles Babbage.

• Charles Babbage is considered to be the ‘Father of Modern Digital Computer’.

Key Points

• Digital computer, any of a class of devices capable of solving problems by processing information in discrete form.
  • It operates on data, including magnitudes, letters, and symbols, that are expressed in binary code—i.e., using only the two digits 0 and 1.
  • Examples of digital electronic computers include the IBM PC, the Apple Macintosh as well as modern smartphones.
• Today computers are being used almost everywhere like schools, colleges, hospitals, offices, railway stations, hotels, etc.
• A computer system is multitasking so that you can do two tasks very easily at the same time.

Additional Information

• Storage Capacity of Computer
  • Computer systems have a very large capacity to store any type of data.
  • A computer can store and resell any information due to its storage capacity. 
  • Computers have the ability to store all types of data such as data, pictures, files, programs, games, and sound for many years and later we can get any data in a few seconds at any time for taking that information and for future retrieval.
• Reliability of Computer
  • Reliability is a very big characteristic of computers.
  • Today almost all the big industries or big e-Commerce companies like Amazon and Flipkart, and big search engine companies like - Google and Bing, all these companies are dependent on computers. 
  • Today every major industry and company in the world has full confidence in their computers, and their entire business is running from computers.
• Diligence of Computer
  • A person gets tired of doing some work in a few hours and a computer has the ability to do any work continuously for many hours, days, months. 
  • Even after the computer has worked for such a long time, there is no decrease in its ability to work and its accuracy.
  • The computer does work without any discrimination.
    • A computer is free from monotony and tiredness.
• Accuracy of Computer
  • A computer is very accurate.
    • It does not make any kind of mistake in calculating.
    • Sometimes we get some errors but these are because of the mistake performed by us.
  • The Accuracy of the computer is constantly high and it can perform hundreds of operations with the carry-out calculation and analysis accurately and speedily.