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.

The correct answer is Nitrification.

Key Points

• The process of conversion of ammonia into nitrate nitrogen is called nitrification.
• It is done in two steps- Nitrite formation, Nitrate formation.
• Nitrite formation- Ammonia are oxidized to nitrites by Nitrococcus, Nitrosomonas.

Additional Information

• The nitrogen cycle has four steps-
  • Nitrogen Fixation- Conversion of molecular nitrogen into the inorganic nitrogenous compound.
  • Ammonification- Conversion of the dead organic nitrogenous compound into ammonia.
  • Nitrification- Oxidation of ammonia into nitrates.
  • Denitrification- Nitrites or nitrates converts back into molecular nitrogen.

The relation among given numbers is that every number is the sum of the squares of the digits of the previous number:

936 → 9² + 3² + 6² = 81 + 9 + 36 = 126

126 → 1² + 2² + 6² = 1 + 4 + 36 = 41

41 → 4² + 1² = 16 + 1 = 17

17 → 1² + 7² = 1 + 49 = 50

50 → 5² + 0² = 25

25 → 2² + 5² = 4 + 25 = 29

Concept

The javac command in Java compiles a program from a command prompt.

It reads a Java source program from a text file and creates a compiled Java class file.

Syntax

javac filename [options]

For example, to compile a program named Abc.java, use this command:

javac Abc.java

CONCEPT:

• Newton's first law states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by any external force.
• Newton's Second Law of motion states that the rate of change of momentum of an object is proportional to the applied force in the direction of the force i.e.,

​ \(F = \frac{{dp}}{{dt}}\)

Where F = force applied, m = mass of the body, and a = acceleration produced.

• Newton's Third Law of Motion states that 'To every action, there is an equal and opposite reaction'.

EXPLANATION:

• The launching of a rocket illustrates Newton’s third law of motion. Therefore the option 1 is correct.
• Newton's Third Law of Motion states that 'To every action, there is an equal and opposite reaction'.
• So, when the rocket is ignited, it releases gases from its thrusters thereby creating a force that will push rocket upwards and it can gain extreme velocity using this principle.

• Newton's third law of motion is applicable irrespective of the nature of the forces. The forces of action and reactions may be mechanical, gravitational, electric, or of any other nature.
• Action and reaction always act on different bodies. If they acted on the same body, the resultant force would be zero and there could never be accelerated motion.
• The forces of action and reaction cannot cancel each other. This is because action and reaction, though equal and opposite, always act on different bodies and so cannot balance each other.
• No action can occur in the absence of a reaction.