Question Discussion & Solution

The correct answer is Western disturbances.

Key Points

• Western Disturbances are responsible for the rainfall during winter over the northwestern part of India.
• The Western Disturbance originates in the mid-latitude region near Europe and the Atlantic Ocean.
  • The low pressure builds up over the Mediterranean Sea and moves over Iraq, Afghanistan, and Pakistan before entering India, and contains substantial amounts of moisture.
  • When these low-pressure systems reach the Indian subcontinent, they are blocked by the Himalayas and rain as snow over the northwestern plains and the higher reaches of the western Himalayas.
  • After precipitation over northwest India, they weaken and are devoid of moisture, they blow as dry winds that form dense fog over the northern plains of India.

Additional Information

• The period June to September is referred to as the Southwest Monsoon period.
  • Southwest Monsoon period is the principal rainy season for the Indian subcontinent.
  • This is the summer monsoon period where the southwest monsoon holds away over the country.
  • The whole country receives nearly 75% of its rainfall during this period.

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. 

An ohmmeter is an electrical instrument that measures electrical resistance. Similarly, barometer is a scientific instrument that is used to measure air pressure in a certain environment.

The correct answer is Viceroy Curzon.

Key Points

• Lord Curzon:
  • ​He served as Governor-General of India from 1899 to 1905.
  • He passed the Calcutta Corporation Act in the year 1899.
  • According to the act, it increased the number of official members and decreased the strength of elected official members.
  • As official members were mostly British Subjects it caused resentment in the Indian public.
  • He was the Viceroy who passed a law for protecting Ancient Indian monuments.
  • He passed the law in 1904 made the destruction of Ancient Monuments an offence and directed officials to collect and preserve ancient monuments.
  • British viceroy in India, Lord Curzon, carried out Partition of Bengal, (1905) despite strong Indian nationalist opposition.

Additional Information

• The Partition of Bengal was announced on 19 July 1905 by the then Viceroy Lord Curzon.
  • And was implemented on 16 October 1905
  • However, in 1911 it was withdrawn by Lord Hardinge.
• The stated reason was to ease the administration.
  • But the actual reason was to weaken the growing nationalism in Bengal and break the unity.
• As per Curzon, after the partition, the two provinces would be Bengal (including modern West Bengal, Odisha, and Bihar) and Eastern Bengal and Assam.
• Annulment of Bengal:
  • The partition of Bengal was annulled in 1911 by Lord Hardinge.
  • The capital of British India was moved to Delhi from Calcutta in 1911.
  • Despite the annulment, the partition already succeeded in making a communal divide between Muslims and Hindus of Bengal.

The correct answer is Ganga Singh.

Key Points

• Ganga Singh-
  • He was the younger brother of Dungar Singh.
  • He is known as Rajasthan's Bhagirath.
  • He took part in all three round table conferences.
  • He built Lalgarh palace in memory of his father Lal Singh.

Additional Information

• Rav Beeka-
  • He was the son of Rav Jodha.
  • Firstly, He established Kodamdesar as a capital.
  • He built the Bhairav temple in Kodamdesar.
  • He established Bikaner's Rathore dynasty.
  • He also established Bikaner city in 1488 AD.
  • He is also known as Jangaldhar Badshah. 
• Rai Singh-
  • He was the son of Rav Kalyanmal.
  • He went to Nagore Darbar in 1570 AD and became a member of the Royal army.
  • His daughter was married to Shajade Salim.
  • Akbar gave Rai title to him.
• Sardar Singh-
  • He was the only Rajasthani ruler who gave support to Britishers in 1857's revolt out of Rajasthan.
  • Britishers gave him 41 villages of Tibbi Pargana in reward for his service.
  • He was the first to prohibit Sati tradition in Bikaner.