Static general knowledge fills most of Paper-I in UPSC CAPF. Of the six areas the CAPF (ACs) 2026 notice lists for General Ability and Intelligence, four are static: General Science; Indian Polity and Economy; History of India; and Indian and World Geography. The notice's wording shows the depth expected. Polity covers the political system and the Constitution of India, social systems, public administration, security issues and human rights with their indicators. Economy covers economic development in India. History covers social, economic and political aspects, including the growth of nationalism and the freedom movement. Geography covers physical, social and economic aspects of India and the world. General Science asks about everyday scientific phenomena and new areas such as Information Technology, Biotechnology and Environmental Science. This page holds GK24's topic-wise GK notes for UPSC CAPF, in English and Hindi, written as short facts and tables so that a topic can be revised in one sitting: Indian Polity, Indian History, Geography, Indian Economy, General Science, Environment and Ecology, Computer, and Art and Culture. The same notes serve Paper-II, whose essay part suggests modern Indian history, the freedom struggle, geography, polity and economy as topics. Read one topic at a time, then solve its quiz and the CAPF previous-year questions on this site to check what you have retained. General Mental Ability, the sixth area, is reasoning and arithmetic, and needs separate practice.
An X-ray beam can be deflected by :
X-rays are electromagnetic waves made of photons, which carry no electric charge, so electric and magnetic fields cannot bend them.
Read the full explanation →Which one of the following statements related to below mentioned Committees of the Parliament is correct?
The Committee on Welfare of Other Backward Classes is a joint committee whose Chairperson is appointed by the Speaker of the Lok Sabha from among its members.
Read the full explanation →A snowboard pulled up by a tow rope travels at the rate of 5 m/s up a mountain. If 3000 watt of power is used, what force was applied to it ?
Power equals force times velocity, so the force is 3,000 W divided by 5 m/s, which is 600 N. Power is the rate of doing work: P = W/t. Work is force times distance, W = F × d, so P = F × d/t, and since d/t is the…
Read the full explanation →Broadly both birth and death rates are low in which one of the following stages of demographic transition model?
In this last stage both the birth rate and the death rate are low, so the population grows very slowly or stays almost steady.
Read the full explanation →Which one of the following is the deepest, inland and protected port on the east coast of India ?
It is the deepest landlocked and well-protected port on India's east coast. Visakhapatnam port in Andhra Pradesh lies in a natural harbour cut into the land, sheltered by the Dolphin's Nose headland, which protects ships from the waves of the Bay of Bengal.
Read the full explanation →Consider the following characteristics of a type of wind : 1. They occur at upper levels in the atmosphere 2. They are subjected to two forces, a pressure gradient force and the Coriolis force 3. When the forces balance, air moves at right angles to the pressure gradient, parallel to the isobars Identify the type of wind on the basis of the given characteristics :
A geostrophic wind blows high above the surface, where the pressure gradient force and the Coriolis force balance and the air flows parallel to the isobars.
Read the full explanation →Which one of the following statements is not correct?
Only the Supreme Court and the High Courts are courts of record under the Constitution; subordinate courts are not. Article 129 declares the Supreme Court a court of record, and Article 215 does the same for every High Court.
Read the full explanation →Who among the following scholars has conceptualized the Constitution of India as a 'seamless web' ?
The American historian described the Indian Constitution as a "seamless web" of three closely linked strands.
Read the full explanation →When a longitudinal wave moves through a certain medium, the quantity which is transmitted through the medium is
A wave carries energy from one place to another, while the particles of the medium only vibrate about their fixed positions.
Read the full explanation →How is the magnitude of price elasticity for an individual good determined? 1. By the degree to which the good is a necessity or luxury 2. By the extent to which substitutes are available 3. By the rate of income growth in the economy 4. By the relative importance of the good in the consumer's budget Select the correct answer using the code given below.
The nature of the good, its substitutes and its share in the budget decide how strongly demand reacts to price; the growth of income in the economy does not.
Read the full explanation →Which one of the following is a permeable rock that allows water to pass through it?
Water passes through limestone along its joints and bedding planes, and slowly dissolves the rock as it goes. Limestone is a sedimentary rock made mainly of calcium carbonate.
Read the full explanation →Who among the following was the founder of 'Sikkim Praja Mandal' ?
He founded the Sikkim Praja Mandal in 1945 to oppose the feudal landlord system and the absolute rule of the Chogyal.
Read the full explanation →Which one of the following statements about the 'Amara-Nayaka' system is not correct?
The territories of the amara-nayakas were not hereditary; the Vijayanagara kings transferred them from one place to another from time to time.
Read the full explanation →Which one of the following major river basins of India is the shortest in length and smallest in terms of catchment area?
Of the four, the Sabarmati is both the shortest river and the one with the smallest basin. The Sabarmati rises in the Aravalli hills of Rajasthan and flows about 370 km south-west through Gujarat, past Ahmedabad and Gandhinagar, into the Gulf of Khambhat.
Read the full explanation →Zayed Medal is the top civilian honour of
The Order of Zayed is the highest civilian decoration of the UAE. The medal is named after Sheikh Zayed bin Sultan Al Nahyan, the founding father of the UAE and its first President from 1971 until his death in 2004.
Read the full explanation →Which one of the following statements about production possibility frontier is not correct?
On the frontier all resources are already fully used, so more of one good can be produced only by giving up some of the other.
Read the full explanation →Which one of the following conservation laws is a consequence of the Newton's third law of motion?
Equal and opposite forces acting for the same time give equal and opposite changes in momentum, so the total stays the same.
Read the full explanation →Consider the following statements regarding the rotation of the Earth : 1. Since the Earth rotates by 15° each hour, time zones normally differ by one hour 2. At the International Date Line, the calendar day changes - advancing a day for eastward travel, dropping back a day for westward travel 3. Daylight saving time advances the clock by one hour 4. The Moon rotates and revolves about the Earth in the same direction that the Earth revolves around the Sun Which of the statements given above is/are correct ?
Only statement 2 is wrong, because it reverses the date-line rule. The Earth turns 360° in 24 hours, or 15° every hour, so neighbouring standard time zones are usually one hour apart (statement 1).
Read the full explanation →Which one of the following is the correct descending order of Indian States in terms of their density of population (as per 2011 Census)?
By the 2011 Census, Bihar was the most densely populated State, followed by West Bengal, Kerala and Uttar Pradesh. The 2011 Census gave these densities in persons per square kilometre: Bihar 1,106, West Bengal 1,028, Kerala 860 and Uttar Pradesh 829, against a national average of 382.
Read the full explanation →National Technology Day is observed on
The day marks the Pokhran nuclear tests of 11 May 1998. On 11 May 1998 India carried out the Shakti series of nuclear tests at Pokhran in Rajasthan, under Operation Shakti; two more tests followed on 13 May.
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