Question Discussion & Solution

The correct answer is 1939.

Key Points

Congress Party: 

• An Indian political party founded in 1885 as Indian National Congress.
• Founded by Allen Hume, a British colonist and, until World War-I it was a moderate body.
• Later, under the leadership of Mahatma Gandhi, it began a campaign of non-violent non-cooperation.
• It was declared illegal between 1932-34. It led the movement to end British rule and was the government party after independence from 1947-77.

Key people-Congress Party Leader: 

•  Maulana Abul Kalam Azad (1888-1958): Leading Muslim member of Congress Party; Congress president, 1940-1946; Indian education minister after independence.
•  Mohandas Karamchand Gandhi (Mahatma) (1869-1948):  Studied law in London; 1893-1914, worked in South Africa; on return to South Africa, rose to dominance in Congress Party, becoming its president in 1924. Led a number of civil disobedience campaigns, spending a number of spells in prison. Made numerous attempts between 1944-1947 to stop the partition of India but failed. Assassinated, 1948.
• Jawaharlal (Pandit) Nehru(1889-1964) Barrister and politician in the United Provinces of India; supporter of Gandhi; President of Indian National Congress, 1929, 1936-37, 1946, 1951-54; first prime minister of India, 1947-1964.

CONCEPT:​

• Power of Lens: The inverse of the focal length is known as the power of the lens.
  • It shows the bending strength for the light ray of the lens.

\(P = \frac{1}{f}\)

where P is the power of the lens and f is the focal length of the lens.

• The unit of power of a lens is Dioptre when the focal length of the lens is taken in meter (m).
• The focal length of the convex lens (converging) is positive and that of the concave lens (diverging) is negative. 

CALCULATION:

Given that lens is diverging. so focal length is negative.

f = -5 cm = -0.05 m

Power of lens \(P = \frac{1}{f} =\frac{1}{-0.05} = -20 D\)

P = -20 D

So the correct answer is option 2.

The correct answer is World’s tallest waterfall - Tugela Falls.

Key Points

• Some important tallest waterfalls and their height are as follows:-

• Angel Falls is the world's tallest uninterrupted waterfall.
  • It is the UNESCO World Heritage site in the Gran Sabana region of Bolívar State.
• Tugela Falls is the world's second tallest waterfall.

Additional Information

• Lake Superior is the largest of the Lakes of North America and among freshwater lakes.
  • Lake Superior is the world's largest by surface area and the 3rd largest by volume.
• Lake Titicaca is a deep, large freshwater lake in the Andes on the border of Bolivia and Peru, often called the 'highest navigable lake' in the world.
  • By volume of water and by surface area, Titicaca is the largest lake in South America.
• Lake Tanganyika is an African Lake.
  • Tanganyika is the 2nd oldest freshwater lake in the world, the 2nd largest by volume, and the 2nd deepest, in all cases after Lake Baikal in Siberia.

The correct answer is 100.

• 100 per cent share of the Central Government in the 'Sambhar wetland project' under the Twelfth Five Year Plan (2012 - 2017).

Additional Information 

• The objectives of the Twelfth Five-Year Plan were:
  • To create 50 million new work opportunities in the non-farm sector.
  • To remove gender and social gap in school enrolment.
  • To enhance access to higher education.
  • To reduce malnutrition among children aged 0–3 years.
  • To provide electricity to all villages.
  • To ensure that 50% of the rural population has access to proper drinking water.
  • To increase green cover by 1 million hectares every year.
  • To provide access to banking services to 90% of households.