Defence GK Questions 2026

Powers of lenses in contact simply add, so the combination has a power of 2 + 2 = 4 dioptre, and its focal length is 1/4 m, that is 0.25 m. The power of a lens is the reciprocal of its focal length in metres, P = 1/f, and is…

All three statements about the Richter scale are correct. Statement 1 is correct: the American seismologist Charles F. Richter devised the scale in 1935 at the California Institute of Technology, working with Beno Gutenberg.

Java lies wholly in the Southern Hemisphere, roughly between 6° S and 9° S, so the Equator does not pass over it.

The south-west monsoon usually lasts about 100 to 120 days, from early June to about mid-September. The monsoon reaches the Kerala coast around 1 June and spreads over almost the whole country by early to mid-July.

Naneghat is a mountain pass in the Western Ghats of Maharashtra, known for Satavahana cave inscriptions, not for a Chola Shiva temple.

Parenchyma is the basic packing tissue of plants, and it is also present in both xylem (xylem parenchyma) and phloem (phloem parenchyma).

A point on a map is fixed where its line of latitude crosses its line of longitude, so both values are needed and enough.

Oxidising power of the halogens falls as we go down group 17, so iodine is the weakest and fluorine the strongest oxidising agent.

Rourkela in Sundargarh district of Odisha matches all three clues: Jharia coal, Sundargarh and Kendujhar iron ore, Hirakud power and water from the Koel and Sankh.

Urea, CO(NH2)2, contains about 46 per cent nitrogen, the highest of any common solid fertiliser, and is the main nitrogen fertiliser used in India.

The primary structure of a protein is simply the linear order of amino acids joined one after another by peptide bonds.

This statement is false: diamond is an electrical insulator because it has no free electrons. In diamond, every carbon atom uses all four of its valence electrons to form strong covalent bonds with four other carbon atoms in a rigid three-dimensional network.

Land left uncultivated for more than one year but less than five years falls in this category of the land revenue records.

This is false: an economic model can be stated in words, shown in diagrams or graphs, or written as equations.

Neither has a Mediterranean climate, so neither has sclerophyll vegetation. Sclerophyll means 'hard leaf'.

Its Challenger Deep, about 10,900 metres (nearly 11 km) below sea level, is the deepest known point of the oceans.

A new state is created, or a state's boundaries changed, by an ordinary law of Parliament under Article 3, passed by a simple majority.

This statement is wrong: the Benami law is enforced by the Income Tax Department, not the ED. The Directorate of Enforcement, set up in 1956, is a specialised financial investigation agency under the Department of Revenue in the Ministry of Finance, with its headquarters in New Delhi.

Peasant risings against moneylenders were common in the 19th century, and the Deccan Riots began at Supa in May 1875.

It is one of the two education indicators in NITI Aayog's National Multidimensional Poverty Index. The national MPI measures deprivation, not income, across three equally weighted dimensions: health, education and standard of living.