GK: Class 12 General Q&A · Page 37
3,658 free answers on GK (General) for Class 12 students, across CBSE, ICSE and State boards.
Question & Answer
Questions
- GeneralClass 12All
Kurnool Andhra Pradesh
Kurnool is a historic city and district headquarters in the Rayalaseema region of Andhra Pradesh, India, located on the banks of the Tungabhadra River approximately 200 kilometers from Hyderabad. The city has significant historical importance, having served as the capital of Andhra State from October 1, 1953, to October 31, 1956, before Andhra Pradesh was formed with Hyderabad as capital. Kurnool's strategic location has made it an important junction connecting various parts of southern India
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In the Hare Tortoise Race
This refers to Aesop's famous fable "The Tortoise and the Hare," a classic story teaching the moral that "slow and steady wins the race" or that consistent, persistent effort often succeeds over natural talent combined with overconfidence and complacency. In the story, a swift hare mocks a slow tortoise, leading the tortoise to challenge the hare to a race. Confident of easy victory due to his natural speed, the hare races ahead but then, seeing his huge lead, decides to take a nap. Meanwhile
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Data Definition
Data, in its most fundamental definition, refers to raw facts, figures, observations, measurements, or descriptions collected from various sources that, on their own, lack organized meaning or context until processed, organized, and interpreted. Data represents the most basic level in the information hierarchy: data → information → knowledge → wisdom, where data becomes information when organized meaningfully, information becomes knowledge when understood and applied, and knowl
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How Many Zeros in Crore
One crore contains seven zeros, written as 1,00,00,000 in Indian notation or 10,000,000 in international notation. The Indian numbering system places commas differently than the international system: after the first three digits (hundreds place), commas appear every two digits (thousands, lakhs, crores), creating the distinctive notation 1,00,00,000 where the seven zeros are clearly visible. This question often arises in educational contexts or when people are learning the Indian numb
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USSR Full Form
USSR stands for Union of Soviet Socialist Republics, also known as the Soviet Union, which was a federal socialist state that existed from 1922 to 1991, spanning eleven time zones across Eastern Europe and Northern Asia. The USSR was formed after the Russian Revolution of 1917 and the Russian Civil War, uniting Russia, Ukraine, Belarus, and Transcaucasia initially, eventually expanding to include fifteen union republics. As the world's first constitutionally socialist state and the largest co
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Density of Water
The density of water is approximately 1 gram per cubic centimeter (1 g/cm³) or 1000 kilograms per cubic meter (1000 kg/m³) at 4°C (39.2°F), which is water's maximum density point. This density value is fundamental in science and serves as a reference standard—the kilogram was originally defined based on the mass of one liter (1000 cm³) of water, and specific gravity of substances is measured relative to water's density. Water's density varies slightly with tempera
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RSS Full Form
RSS has multiple meanings depending on context. In Indian politics, RSS stands for Rashtriya Swayamsevak Sangh, a Hindu nationalist volunteer organization founded in 1925 by K.B. Hedgewar in Nagpur, Maharashtra. The RSS is one of India's most influential socio-political organizations, based on principles of Hindu cultural nationalism, organizing daily shakhas (branches) where members participate in physical training, ideological education, and community activities. The organization has been b
- GeneralClass 12All
How Many Zeros in 1 Crore
One crore (1,00,00,000 in Indian notation or 10,000,000 in international notation) contains seven zeros. Understanding the structure of this number helps: in Indian place value system, after the first three digits (ones, tens, hundreds), commas are placed every two digits (thousands, ten thousands, lakhs, ten lakhs, crores), making the notation 1,00,00,000 with seven zeros after the one. In international notation, commas are placed every three digits, making it 10,000,000, which also clearly
- GeneralClass 12All
12th
"12th" refers to the twelfth grade or Class 12, the final year of senior secondary education in the Indian school system and many other countries, typically completed by students aged 17-18 years. In India, Class 12 culminates in board examinations conducted by various educational boards including CBSE (Central Board of Secondary Education), CISCE (Indian Certificate of Secondary Education), and numerous state boards, representing one of the most significant academic milestones in a student's
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Nitrogen Cycle
The nitrogen cycle is the biogeochemical process through which nitrogen—an essential element for proteins, nucleic acids (DNA and RNA), and other biological molecules—is converted between various chemical forms as it circulates through the atmosphere, terrestrial ecosystems, and aquatic ecosystems. Nitrogen gas (N₂) comprises about 78% of Earth's atmosphere but is largely unreactive and unusable by most organisms in this form, making nitrogen availability a limiting factor for lif
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Volume of Hemisphere
The volume of a hemisphere (half of a sphere) is calculated using the formula: V = (2/3)πr³, where r is the radius of the hemisphere (and of the complete sphere from which it's derived). This formula comes from the sphere volume formula V = (4/3)πr³, simply divided by 2 since a hemisphere is half a sphere. For example, a hemisphere with radius 6 cm has volume: V = (2/3) × π × 6³ = (2/3) × π × 216 = 144π ≈ 452.39 cubic centimeters (us
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Paddy
Paddy refers to rice in its natural form as harvested from the field, still enclosed in its husk (the hard protective covering), before processing that removes the husk to produce rice suitable for consumption. The term "paddy" comes from the Malay word "padi," meaning rice plant. Paddy cultivation (rice farming) is one of the most important agricultural activities globally, particularly in Asia, where rice serves as the staple food for over half the world's population. India, China, Indonesi
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MCB Full Form
MCB stands for Miniature Circuit Breaker, an automatically operated electrical switch designed to protect electrical circuits from damage caused by overcurrent (excessive current flow due to overload or short circuit). MCBs have largely replaced traditional fuses in modern electrical installations—homes, offices, industries—because they offer superior safety, convenience, and reusability. Unlike fuses that must be replaced after "blowing," MCBs can simply be reset after tripping,
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12 in Words
Twelve is the correct way to write 12 in words. This spelling represents the number following eleven and preceding thirteen, combining the concepts of "two" and a suffix indicating it's in the teens. Writing numbers in words is important for formal documents, checks, legal papers, academic writing (where style guides often require spelling out numbers below a certain value), and any context where clarity and preventing alteration of numerical values is crucial. Understanding how to wr
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WiFi Full Form
WiFi stands for "Wireless Fidelity," though this is somewhat a backronym—the term was actually created as a catchy marketing name for wireless networking technology based on IEEE 802.11 standards, with "WiFi" chosen because it sounded similar to "Hi-Fi" (High Fidelity) used for audio equipment. WiFi enables devices like computers, smartphones, tablets, smart TVs, and IoT devices to connect to the internet and communicate with each other wirelessly using radio waves, typically within a r
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Coal
Coal is a combustible black or brownish-black sedimentary rock formed from ancient plant matter that accumulated in swamp environments and underwent transformation over millions of years under conditions of high temperature and pressure (a process called coalification). Composed primarily of carbon along with hydrogen, sulfur, oxygen, nitrogen, and various minerals, coal has been humanity's major energy source since the Industrial Revolution, powering steam engines, generating electricity, an
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Seven Wonders of the World
The Seven Wonders of the World refers to the New Seven Wonders, designated in 2007 through a global poll organized by the New7Wonders Foundation, replacing the Ancient Seven Wonders (most of which no longer exist). The modern list celebrates remarkable architectural and cultural achievements from different civilizations and continents, representing humanity's creative and engineering capabilities across history. The seven sites are: (1) The Great Wall of China—the massive defensive stru
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Rowlatt Act
The Rowlatt Act, officially titled the Anarchical and Revolutionary Crimes Act of 1919, was a repressive law passed by the British Imperial Legislative Council that extended emergency measures of preventive indefinite detention, incarceration without trial, and judicial trials without juries that had been enforced during World War I. Named after the Rowlatt Committee chairman Sir Sidney Rowlatt, the act gave British colonial authorities sweeping powers to arrest and imprison suspects without
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TGT Full Form
TGT stands for Trained Graduate Teacher, a teaching position in Indian schools typically for classes 6 to 10 (middle and secondary levels), requiring candidates to be graduates with a Bachelor of Education (B.Ed.) degree or equivalent teaching qualification. TGT teachers are subject specialists teaching specific subjects like Mathematics, Science, English, Hindi, Social Science, or regional languages at the middle and secondary school level. The position exists in both government schools (cen
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Convex Mirror
<p>A convex mirror is a curved mirror where the reflective surface bulges outward toward the light source, resembling the exterior of a sphere. Unlike concave mirrors that curve inward, convex mirrors always form virtual, erect (upright), and diminished (smaller than object) images regardless of object distance. The center of curvature and focus lie behind the mirror's surface, making them virtual points. Key properties include: a positive focal length in the mirror equation convention,