Science & Technology Fundamentals Quiz

When Prime Minister Indira Gandhi asked Rakesh Sharma how India looked from space, he famously replied 'Sare Jahan Se Achha' (Better than the whole world), quoting the famous poem by Iqbal. He did not say 'Jai Hind' as his primary descriptive response.

Titan is the largest moon of Saturn and the second-largest natural satellite in the Solar System. It is the only moon known to have a dense atmosphere and stable bodies of surface liquid. Triton is a moon of Neptune.

Earth Day was founded by Gaylord Nelson, a U.S. Senator from Wisconsin, after witnessing the 1969 oil spill in Santa Barbara. The first Earth Day was celebrated on April 22, 1970, mobilizing millions of Americans for environmental protection.

Mercury is a unique chemical element because it is the only metal that remains in a liquid state at standard room temperature and pressure. While it is a metal, its melting point is very low (-38.8°C).

The Cosmic Background Explorer (COBE), also referred to as Explorer 66, was a satellite mission designed to measure the diffuse radiation of the universe. It provided evidence for the Big Bang theory. The question allows multiple correct IDs (COBE and Explorer 66).

To solve this question, the user needs to understand the concept of sound waves and how they travel through different mediums. The user must know that sound waves require a medium to travel and that the speed of sound can vary depending on the properties of the medium.

Now, let's go through each option and explain why it is right or wrong:

A. True: This option is correct. Sound does travel faster in solids than in liquids, and faster in liquids than in gases. This is because solids have a higher density and more tightly packed particles, which allows sound waves to propagate more quickly. Liquids have a lower density and less tightly packed particles, so sound waves travel at a slower speed compared to solids. Gases, such as air, have the lowest density and most widely spaced particles, resulting in the slowest speed of sound.

B. False: This option is incorrect. Sound does travel faster in solids than in liquids and faster in liquids than in gases. Therefore, the statement that sound travels faster in solids than in liquids, and faster in liquids than in air is true.

The Answer is: A

NASA stands for the National Aeronautics and Space Administration. It is an independent agency of the U.S. federal government responsible for the civil space program, aeronautics research, and space research. Other options use incorrect words like 'Satellite' or 'Atlantic'.

Sergey Brin's personal blog, which he started in 2008, is located at 'too.blogspot.com'. The title of the blog is 'too', and he used it to share personal thoughts and photos, distinct from official Google communications.

Google.org is the charitable and philanthropic arm of Google, founded in 2005. It provides funding and technical assistance to nonprofits and social enterprises to address global challenges. The .com domains are commercial or informational.

PageRank is the famous algorithm developed by Larry Page and Sergey Brin that formed the foundation of Google's search engine. It ranks web pages based on the quantity and quality of links pointing to them. 'Search Rank', 'PageCalc', and 'SearchView' are not real algorithm names.

Google Lively was a web-based virtual environment produced by Google that launched in July 2008 and was discontinued in December 2008. It was Google's attempt to compete with virtual worlds like Second Life.

The pituitary gland is called the 'master gland' because it secretes hormones that regulate other endocrine glands, including the thyroid, adrenal glands, and reproductive glands. The liver produces bile and metabolizes nutrients, the pancreas produces digestive enzymes and insulin, and salivary glands produce saliva.

John Dalton proposed his atomic theory in 1803. The Rutherford model was proposed in 1911, and the Bohr model in 1913. Therefore, the Dalton model was published significantly earlier than the others.

Google invested in 23andMe through Google Ventures (now GV), and Sergey Brin was married to 23andMe co-founder Anne Wojcicki. 23andMe was never Google's biotechnology arm, nor was it spun off from Google.

Isaac Newton formulated the Theory of Universal Gravitation in his seminal work 'Philosophiæ Naturalis Principia Mathematica' (1687). Dalton proposed atomic theory, Einstein developed relativity theory, and Faraday contributed to electromagnetism.

At the time of this question's creation, DoubleClick ($3.1 billion in 2007) was Google's largest acquisition. It was later surpassed by Motorola Mobility ($12.5 billion in 2012). Among the provided options, DoubleClick is the largest historical acquisition.

This is a trivia question likely dating from 2009-2010. At that time, Google managed approximately 57 different Twitter accounts for various products and regional branches. This number has since grown significantly, but 57 was the widely cited figure during that era.

At the time this question was likely written, Eric Schmidt was the CEO of Google (2001–2011). Larry Page took over in 2011, followed by Sundar Pichai in 2015. Given the context of the other questions in this set, Schmidt is the intended answer.

Eric Schmidt served on Apple's Board of Directors from 2006 until 2009. He resigned in August 2009 due to increasing conflicts of interest as the competition between Google (Android) and Apple (iOS) intensified.