TRE3 — Language General Studies And Physics

Correct answer: (A) Electrolysis
Green hydrogen is made by the electrolysis of water using renewable electricity—the water splits into H₂ and O₂. Since the power comes from the sun or the wind, there is no carbon emission.

Correct answer: (A) Deepfake
Deepfake technology copies a person's face, voice and manner closely enough to make a video in which even someone dead can be shown speaking. AI is the wider field, and a chatbot is only a program that converses.

Correct answer: (B) Pakistan
On the cost-of-living index of 2024, Pakistan among the countries given was placed better than India.

Correct answer: (B) Rajendra Prasad
Rajendra Prasad was foremost among those who stood with Gandhiji in the Champaran Satyagraha of 1917; he later became India's first President. The movement was for peasants forced to grow indigo.

Correct answer: (A) Mercury
Mercury's surface is pitted with craters like the Moon's and it has almost no atmosphere of its own, which is why it is called the moon-like planet. Mars has a thin atmosphere and the Earth a dense one.

Correct answer: (A) Rift Valley of Africa
On the evidence of fossils the place of man's origin is taken to be the Rift Valley of Africa, where the oldest remains of early humans have been found.

Correct answer: (A) Flood-prone area
Dry-point settlements grow where there is a danger of flood—people choose the higher, drier spots, such as the mounds in river valleys, to build on.

Correct answer: (B) Rohtas
Rohtas district grows the most paddy in Bihar and is called the state's rice bowl. The irrigation from the Son canal is the main reason.

Correct answer: (A) Alburz
Tehran, the capital of Iran, lies at the foot of the Alburz range. The Zagros are in western Iran and the Makran in the south-east.

Correct answer: (C) Mahendragiri
The highest peak of the Eastern Ghats is Mahendragiri, in Odisha. Anaimudi belongs to the Western Ghats and Kanchenjunga to the Himalaya.

Correct answer: (E) None of the above
The spread of agriculture, large development projects, and grazing with the gathering of fuelwood are all genuine causes of the loss of flora and fauna. None of them is an invalid reason, so the answer is ‘None of the above’.

Correct answer: (B) Bhagalpur
Bhagalpur produces the most silk cloth in Bihar and is called the Silk City; its tussar silk is especially well known.

Correct answer: (B) Lord Chelmsford
The Jallianwala Bagh massacre took place at Amritsar on 13 April 1919, when Lord Chelmsford was Viceroy. Lord Curzon (1899–1905) is remembered for the partition of Bengal and Lord Irwin (1926–31) for the Gandhi-Irwin Pact.

Correct answer: (B) W. C. Bonnerjee
The first session of the Indian National Congress was held at Bombay in 1885 and its first President was W. C. Bonnerjee. Dadabhai Naoroji presided three times later.

Correct answer: (B) Dadabhai Naoroji
Dadabhai Naoroji is called the Grand Old Man of India. His ‘drain of wealth’ theory showed that British rule was carrying India's wealth away.

Correct answer: (D) More than one of the above
The Quit India Movement (1942) and the Non-Cooperation Movement (1920) were both begun by Mahatma Gandhi. The Swadeshi Movement started in 1905 against the partition of Bengal, before Gandhiji had even returned to India. So more than one option is correct.

Correct answer: (A) Sardar Vallabhbhai Patel
The Bardoli Satyagraha of 1928 was led by Vallabhbhai Patel. After that successful stand against the raised land revenue, the women there gave him the title ‘Sardar’.

Correct answer: (E) None of the above
Annie Besant and Bal Gangadhar Tilak were of course part of the Home Rule Movement, and Sarojini Naidu was an active member too. All three being associated with it, the answer is ‘None of the above’.

Correct answer: (A) Dr. Rajendra Prasad
The Bihar Provincial Congress Committee was founded in 1920 by Dr Rajendra Prasad, later the first President of India. Anugrah Narayan Sinha was his colleague, and Jayaprakash Narayan of a later generation.

Correct answer: (C) Swami Sahajanand Saraswati
The All India Kisan Sabha was founded at Lucknow in 1936 with Swami Sahajanand Saraswati as its first president; he had built the peasant movement up from Bihar.

Correct answer: (B) ML⁻¹T⁻²

Correct answer: (C) −i₀/RC

Correct answer: (A) u cos θ / cos α

Correct answer: (D) More than one of the above

Correct answer: (A) 10⁹

Correct answer: (E) None of the above

Correct answer: (C) 6î + 8ĵ m s⁻¹

Correct answer: (E) None of the above

Correct answer: (C) Elastomer

Correct answer: (C) 3 m s⁻¹

Correct answer: (A) Remain the same

Correct answer: (D) More than one of the above

Correct answer: (E) None of the above

Correct answer: (D) More than one of the above

Correct answer: (C) > 76 cm

Correct answer: (A) Bernoulli’s principle

Correct answer: (E) None of the above

Correct answer: (A) P^(1−γ)T^γ = constant

Correct answer: (B) Temperature will decrease

Correct answer: (C) 100 Cal

Correct answer: (A) Is greater than 1

Correct answer: (C) Its temperature should be made four times at constant pressure

Correct answer: (B) Increases

Correct answer: (B) Inversely proportional to the square of the diameter

Correct answer: (C) Periodic

Correct answer: (C) √6 times slower

Correct answer: (A) 40 N m⁻¹

Correct answer: (B) All particles between consecutive nodes vibrate in phase

Correct answer: (B) < 332 m s⁻¹

Correct answer: (E) None of the above