NTA UGC NET/JRF Exam, Dec., 2021/June, 2022 Geography

Statement I is false but Statement II is true. Agricultural productivity as an input-output ratio was calculated by khusro in the year 1964. Shafi calculated agricultural productivity through ranking co-efficient method in the year 1984.

Correct answer is (A) and (E) only. The methods of linear contrast image enhancement areThe three methods of linear image enhancement is- (1) Min-max linear stretch (2) Percentage linear contrast stretch (3) Piecewise linear contrast stretch. While Histogram equalization and Normalization is a Non- linear contrast image enhancement A linear stretch is used to distribute the values across 256 values, from 0 to 255. Saturation stretch is used to enhance the colour of a 3- band input image by producing output bands that have more saturated colours.

Reverse fault has greater risk of landslides. Reverse fault displacements combine vertical and compressional displacements. It has a wide range of dip angles. The distinction between a reverse fault and a thrust fault is that a reverse fault has a steeper dip, greater than 30 degrees.

Gibbs & Martin gives this formula in 1962 i.e.,
In Crop diversification index = 
In this formula 'x' refers to, Total cropped area occupied by each crop.
• The value of crop diversification index varies from 0 to 1 where 0 and 1 are the ideal situations rarely exist in reality. So, crop diversification index value varies between 0.1 to 0.9. The crop diversification index has a base value of one, which represents the percentage of total cultivated area devoted to a single crop. If the index value is higher, it denotes that the crops are more diversified.

Correct answer is (B) and (D) only. The defining features of postivism are Empiricism and unification of scientific laws, In most general term, positivism determined the scientific status of its statements through:-
Empiricism, the modern view of scientific method is both experience and reason plays an important role in science. Unification of scientific laws, the progressive unification of scientific laws into a single coherent system. Other points are unified scientific method, formulation of scientific laws and exclusion of normative questions.

Correct option is (A) and (B) only. Estimates for life expectancy can be obtained from Life table. Improvement in life expectancy is one of the causes of population ageing. Life expectancy refers to the number of years a person can expect to live. It is based on average age of members of a particular population group.

Correct option is (B) and (D) only. The alphabetical symbols represents the 'wet tropics' climate according to Koppen's climate classification is 'Af and Am. Am is tropical group where average temperature of the coldest month is 18°C or higher. 'Af is tropical rainforest climate with no dry season. Am is tropical monsoon with monsoonal, short dry season.

The dating and study of annual rings of trees is called Dendrochronology. It gives exact year when they were formed. This can also give data for dendroclimatology. This term is coined by. Andrew E. Doughlas

Five Indian metros with respect to total population are arranged in descending order, correct sequence is; Mumbai, Delhi, Kolkata, Chennai, Bengaluru. As per the census 2011 the largest metropolitan cities of India are:- Mumbai (> 18 million population) Delhi (> 16 million pop.) Kolkata (> 14 million pop.) Chennai (> 8.6 million pop.) Bangalore (Around 8.5 million pop.)