general knowledge Online Quiz - 2553

One joule equals 10^7 ergs because joule uses kg-m-s units while erg uses g-cm-s units. Converting kg to g (1000) and m to cm (100): 1 J = 1 kg × 1 m²/s² = 1000 g × 10000 cm²/s² = 10^7 erg.

The ampere (A) is the SI unit of electric current, measuring the flow of electric charge. Ohm measures resistance, watt measures power, and volt measures potential difference.

A seismograph is the scientific instrument specifically designed to detect and record seismic waves, making it the correct tool for measuring earthquake intensity. Barometers measure atmospheric pressure, hydrometers measure liquid density, and polygraphs are used for lie detection.

T.H. Huxley, the prominent 19th-century biologist, famously described protoplasm as the 'physical basis of life' in 1868, emphasizing its fundamental role in cellular structure and function. This concept helped establish the cell theory in biology.

Charles Darwin is correctly associated with the theory of evolution through natural selection. However, the other associations are incorrect: Remington is associated with firearms not typewriters, Alfred Nobel invented dynamite not Dunlop, and the Wright brothers invented the airplane not Harway.

Lazlo Biro, a Hungarian journalist, patented the ballpoint pen in 1938, revolutionizing writing instruments. The pen was named 'Biro' in his honor in many countries. Waterman is associated with fountain pens, while Oscar and Wilson are not associated with pen inventions.

Alexander Fleming discovered penicillin in 1928 from the Penicillium mold, revolutionizing medicine with the first antibiotic. X-rays were discovered by Wilhelm Röntgen, streptomycin by Selman Waksman, and the telephone by Alexander Graham Bell.

Indiscreet means lacking discretion, revealing good judgment, or being rash. The opposite is prudent, which means showing good judgment and careful thought. Reliable, honest, and stupid are not true antonyms of indiscreet.

Familiar means well-known, recognized, or friendly. The antonym strange means unfamiliar, unknown, or foreign. Friendly is a synonym, not an antonym, and unpleasant/dangerous are not direct opposites.

Tangible means perceptible by touch, concrete, or real. The opposite is ethereal, meaning delicate, insubstantial, or not of this world. Concrete, actual, and solid are all synonyms or related concepts, not antonyms.

Love represents deep affection or emotional attachment. The direct antonym is hatred, representing intense dislike or animosity. Villainy refers to wickedness rather than hatred, while compulsion and force are not emotional opposites.

Famous means well-known, celebrated, or widely recognized. The antonym unknown means not known or obscure. Disgraced has moral connotations beyond just being unknown, evil is a moral judgment, and popular is actually a synonym.

Absolute means complete, total, or unlimited - without any restrictions or conditions. Limited means restricted or bounded, which is the direct opposite. Deficient and faulty suggest something is broken or missing, while scarce means in short supply - none directly contrast the concept of completeness like limited does.

Frugal means living simply and economically, being careful with money and resources. Extravagant is the opposite - spending wastefully and being lavish. Generous could align with frugal in some contexts, while copious means abundant and ostentatious means showy - neither are direct antonyms.

Insipid means lacking flavor, dull, or bland. Tasty means having good flavor - the direct opposite. Stupid means unintelligent, discreet means careful/prudent, and feast is a noun for a large meal - only tasty contrasts the concept of flavor.

Able means having the capability or power to do something. Unable means lacking that capability - the direct opposite formed by adding the prefix 'un-'. Disable and misable are not standard words, and inable is not a valid antonym form.

Hostility means unfriendliness, antagonism, or hatred toward others. Friendliness is the direct opposite - showing kindness and goodwill. Courtesy means politeness, hospitality means welcoming guests, and relationship is a neutral connection - only friendliness directly contrasts hostility.

The Hindi tagline 'Jab Ghar Ki Rounak Badhani ho, Diwaro Ko Jab Sajabna Ho' (When you want to enhance the brightness of your home, when you want to decorate your walls) is the famous slogan of Nerolac Paints. This tagline emphasizes wall decoration and home beautification, which directly relates to paint products. Asian Paints is a competitor but uses different taglines.

'Jee lalchaye Raha Na JAye' (When the heart desires, it doesn't go away) was the memorable tagline for Alpenliebe, a chewing gum brand by Perfetti Van Melle. The tagline emphasizes the irresistible taste that makes you want more. Mentos is 'Dimag ki batti jala de', Center Fresh is 'Khao Khao aur Khao', and Big Babool has 'Dimaag machaye jaore'.