Defence GK Questions 2026

By the law of conservation of momentum, the boy and the cart move together with the momentum the boy brought, so their speed is 104 ÷ 55, about 1.89 m/s. With frictionless wheels, no outside horizontal force acts, so total momentum stays the same.

The brothers Harihara I and Bukka Raya I founded the Vijayanagara kingdom in 1336. Harihara and Bukka were sons of Sangama, so their line is called the Sangama dynasty, the first of four dynasties to rule Vijayanagara (Sangama, Saluva, Tuluva and Aravidu).

Roopkund is a high-altitude glacial lake in the Chamoli district of Uttarakhand. Roopkund lies at a height of about 5,000 metres in the Garhwal Himalaya, below the peaks of Trishul and Nanda Ghunti.

A balanced diet contains all the nutrients the body needs, along with roughage and water, in the right amounts. Carbohydrates and fats give energy, proteins build and repair the body, and vitamins and minerals protect against disease and keep body processes running.

Four grams of hydrogen gas is two moles, so it contains 2 × 6.022 × 10²³, about 1.2 × 10²⁴ molecules, not 6.022 × 10²³.

In Chola inscriptions, shalabhoga was land set aside for the upkeep of a school (shala). Chola inscriptions record many kinds of land, mostly gifts made by kings and wealthy people.

The total mass of the reactants equals the total mass of the products, which is exactly what this law states.

More base than acid has been added, so the mixture is basic, and phenolphthalein turns pink in a basic solution.

Lal Bahadur Shastri was born on 2 October 1904 at Mughalsarai in the Varanasi region of Uttar Pradesh, a town now named Pandit Deen Dayal Upadhyaya Nagar; he shares his birthday with Mahatma Gandhi, which is why both are remembered on 2 October.

Agnes Gonxha Bojaxhiu, later Mother Teresa, was born on 26 August 1910 at Skopje, then in the Ottoman Empire and today the capital of North Macedonia.

Birsa Munda was born in 1875 at Ulihatu in the Khunti district of present-day Jharkhand, then part of the Chotanagpur region of Bengal and later Bihar.

Guru Gobind Singh was born in 1666 at Patna in Bihar, while his father Guru Tegh Bahadur was travelling in the east, and the gurdwara Takht Sri Patna Sahib marks the site.

Chandrasekhara Venkata Raman was born in 1888 at Tiruchirappalli in present-day Tamil Nadu and was awarded the Nobel Prize in Physics in 1930 for his work on the scattering of light, the discovery announced on 28 February 1928 that is remembered every year as National Science Day.

Nehru was born on 14 November 1889 and his daughter Indira Gandhi on 19 November 1917, both at Allahabad, now Prayagraj, in the family home that Motilal Nehru named Anand Bhavan.

Dr Rajendra Prasad was born on 3 December 1884 at Ziradei, a village in the Siwan district of Bihar.

Bhagat Singh was born in 1907 at Banga in the Lyallpur district of undivided Punjab. Lyallpur was renamed Faisalabad after Partition and lies in the Punjab province of Pakistan, so the village of his birth is now in Pakistan.

Netaji Subhas Chandra Bose was born on 23 January 1897 at Cuttack in Odisha, where his father Janakinath Bose practised as a lawyer, although the family was Bengali and he was later educated at Calcutta and Cambridge.

Bhimrao Ramji Ambedkar was born on 14 April 1891 at Mhow, a military cantonment town in the Indore region of what is now Madhya Pradesh, where his father was serving in the army.

Mohandas Karamchand Gandhi was born on 2 October 1869 at Porbandar, a coastal town of the Kathiawar region in present-day Gujarat, where his father Karamchand Gandhi served as the diwan of the princely state.

India's first general election was spread over the winter of 1951 and 1952 and is dated 1952, the year the first Lok Sabha and the first set of state legislative assemblies were constituted.