Question Discussion & Solution

Udaipur is NOT correct.

• The princely state, Udaipur which was not the part of Rajasthan Union formed on 25th March 1948.
• The Kota Naresh (Bhim Singh II) was appointed as the Rajpramukh and Shri Gokul Lal Asawa was appointed as the Chief Minister.
• State merged:
  • Banswara, Bundi, Dungarpur, Jhalawar, Pratapgarh, Kota, Tonk, Shahpura, Kishangarh.

Additional Information

Stages of the Unification of Rajasthan:

• Matsya Union: The first stage took place on 18 March 1948.
  • Bharatpur, Dholpur, Karauli and Alwar formed Matsya Union.
  • Shobhlal Kumawat became the Prime Minister.
  • Capital - Alwar
• Rajasthan Union: The second stage took place on 25 March 1948.
  • Banswara, Bundi, Dungarpur, Jhalawar, Kishangarh, Pratapgarh, Shahapura, Tonk and Kota formed a Rajasthan Union separate from Matsya Union.
  • The head of Kota was appointed as the Rajpramukh and Shri Gokul Lal Asawa was appointed as the Chief Minister.
• United of Rajasthan: In the third stage on 18 April 1948 Udaipur was merged into Rajasthan Union.
  • Manikyalal Verma became the Prime Minister.
  • Capital - Udaipur
• Greater Rajasthan: In the fourth stage on 30 March 1949, Jaipur, Jodhpur, Bikaner and Jaisalmer are merged into United Rajasthan.
  • Heeralal Shashtri became the Prime Minister.
  • Udaipur king Bhupal Singh became Chief King.
• United States of Greater Rajasthan: In the fifth stage on 15 May 1949, Matsya Union was merged with Greater Rajasthan. 
  • Heeralal Shashtri became the first Chief Minister of Rajasthan.
• United Rajasthan: The sixth stage was completed by 26 Jan 1950.
  • 18 states of the United Rajasthan & princely state of Sirohi got merged with the exception of Abu & Delwara.
• Rajasthan: The seventh stage was completed on 1 November 1956.
  • Ajmer – Merwara, Abu – Dilwara (Sirohi) and Sunel Tappa of Bhanpura tehsil of Mandsaur district of Madhya Pradesh were included in Rajasthan and the Sironj subdivision of Jhalawar was given to Madhya Pradesh.
  • Mohanlal Sukhadia became Chief Minister and Gurumukh Nihal Singh became Governor.

Eureka:

• Constantan is a Nickel-Copper alloy also known as Eureka.
• It usually consists of 55% copper and 45% nickel.
• Its main feature is the low thermal variation of its resistivity, which is constant over a wide range of temperatures
• Constantan is a Nickel-Copper-based alloy wire that has a high resistivity and is mainly used for thermocouples and electrical resistance heating.
• It has a constant resistivity over a wide range of temperatures.
   

Composition:

• Ni = 45 %
• Cu = 55 %
   

Properties of Eureka:

• Resistivity - 490 µΩ -cm
• Melting point: 1300 ⁰C
• Specific gravity: 8.9 gm /cm³
• Negligible temperature Coefficient
• Easily ductile
• Resistant to atmospheric corrosion
• Can be easily soldered and moulded
   

Application:

• It is used for the measurement of temperature.
• It is used for the formation of thermocouple, along with the wires of other metals such as copper, iron, and chromium.
• It is especially used for resistance purposes since its resistance does not change much with the change in its temperature. It is used for DC current shunts. 

The correct answer is All of these

• An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs.
• The three most common operating systems for personal computers are Microsoft Windows, Mac OS X, and Linux.
• Modern operating systems use a graphical user interface(GUI).
• An Operating System (OS) is an interface between a computer user and computer hardware. An operating system is a software that performs all the basic tasks like file management, memory management, process management, handling input and output, and controlling peripheral devices such as disk drives and printers.
• Some popular Operating Systems include Linux Operating System, Windows Operating System, VMS, OS/400, AIX, z/OS, etc.
• The following are some of the important functions of an operating system:
  • Memory Management
  • Processor Management
  • Device Management
  • File Management
  • Security
  • Control over system performance
  • Job accounting
  • Error detecting aids
  • Coordination between other software and users

The correct answer is Baran.

Key Points

• Shergarh Sanctuary:
  • It is located in Baran district, near Shergarh town. 
  • It was declared as a protected area in 1983.
  • This sanctuary is home to tiger, leopard, wild boar, sloth bear, chital, python, and other animals.

Additional Information

• Other Wildlife sanctuaries in Rajasthan:

The correct answer is X-Ray.

• Electromagnetic (EM) radiation includes radiation via radio waves, microwaves, X-rays and gamma rays.

Key Points

• Electromagnetic (EM) radiation is a form of energy that is all around us and takes many forms.
• Electromagnetic (EM) radiation includes radiation via radio waves, microwaves, X-rays and gamma rays.
• Sunlight is also a form of EM energy.

​Additional Information

• ​EM radiation spans an includes a range of wavelengths and frequencies.
• This range is known as the electromagnetic spectrum.
• The EM spectrum is generally divided into seven regions:
  • Radio waves,
  • Microwaves,
  • Infrared (IR),
  • Visible light,
  • Ultraviolet (UV),
  • X-rays,
  • Gamma rays.

Important Points

• Radio waves have the longest wavelength.
• Gamma rays have the shortest wavelength.