Question Discussion & Solution

A scalar is a quantity which has only a magnitude but not a direction whereas vector is a quantity which has both a magnitude and a direction.

Volume is a scalar quantity similarly, momentum is a vector quantity while time, speed and energy are the scalar quantities.

The correct answer is Chief Justice.

• Kamal Kant Verma was the first is the first Chief Justice of Rajasthan.

Key Points

• The Rajasthan High Court is the High Court of the state of Rajasthan.
• It was established on 29 August 1949 under the Rajasthan High Court Ordinance, 1949.
• The seat of the court is at Jodhpur. 
• There were five High Courts functioning in the various units of the States - at Jodhpur, Jaipur, and Bikaner, the High Courts of former Rajasthan and Matsya Union, before the unification of the Rajasthan.
• The High Court of Rajasthan was inaugurated by the Rajpramukh, Maharaja Sawai Man Singh on 29 August 1949, later on after the complete integration of Rajasthan in 1956 it was moved to Jodhpur with the recommendation of the Satyanarayan Rao committee.

Additional Information

• Maharaj Man Singh II  was the first Governor of Rajasthan.
• Heera Lal Shastri was the first Chief Minister of Rajasthan.
• Tika Ram Paliwal was the first Deputy Chief Minister of Rajasthan.
• https://rajassembly.nic.in/GovernorFormer.aspx
• 

The diagram that best represents the relationship among Sun, Moon and Universe:

Both the Sun and Moon belong to the universe.

Hence, ‘option 2’ is the correct answer.

The correct answer is Sirohi.

Key Points

• In Battle of Kayadara 1178, fought between Muhammad of Ghori and Bhimdev II the battle took place at Kayadra near Mount Abu (Sirohi District).

Important Points

• The battle of Kayadara (1178):
  • Gujarat was ruled by Mularaja II (1175-78: Chalukyan Dynasty) he was young at the time of Coronation.
  • In 1178, Mohd. Ghori crossed the desert and marched towards Gujarat.
  • Naikidevi (Mother of Mularaja) met forces of Ghori at Kayadara (near Mount Abu).
  • Naikidevi inflicted a major defeat to Muhammad Ghori and he was forced to retreat.
  • In 1178 itself, Bhima II, brother of Mularaja II succeeded Mularaja II.
  • As both the brothers occupied the throne during 1178, hence some historians also credit Bhima II with defeating Mohd. Ghori.

Key Points Doubly linked list:
A doubly linked list is a linked data structure that consists of a set of sequentially linked records called nodes. Each node contains three fields: two link fields and one data field.
Binary tree:
A binary tree is a tree data structure in which each node has at most two children, which are referred to as the left child and the right child.

Linked list:

A linked list is a linear collection of data elements whose order is not given by their physical placement in memory. Instead, each element points to the next. It is a data structure consisting of a collection of nodes that together represent a sequence.

Queue:

A queue is a collection of entities that are maintained in a sequence and can be modified by the addition of entities at one end of the sequence and the removal of entities from the other end of the sequence.

A Doubly linked list is the efficient data structure to insert/delete a number in a stored set of numbers.

Hence the correct answer is the Doubly linked list.