science & technology Online Quiz - 314

Nissan Motor Company is a Japanese multinational automobile manufacturer headquartered in Nishi-ku, Yokohama, Japan. The company was founded in 1933 and has grown to become one of the largest automotive companies in the world. While Nissan now has manufacturing plants globally, it originated in Japan.

General Motors (GM) is an American multinational corporation headquartered in Detroit, Michigan, United States. Founded in 1908, GM was the world's largest automaker for 77 consecutive years and remains one of the 'Big Three' American automobile manufacturers. While GM has global operations, its home country is the United States.

Lamborghini is an Italian automotive manufacturer, not German, Japanese, or Chinese. The company was founded and is headquartered in Italy, known for producing luxury sports cars and supercars.

In Tamil language, 'Aluththam' (also spelled as 'Aludam') refers to pressure or force. 'Thoondal' means drop/dripping, 'Sakthi' means power/energy, and 'Vegam' means speed/velocity. The question tests basic Tamil vocabulary.

Argentina's Independence Day is July 9, 1816, when the Congress of Tucuman declared independence from Spain. September 21, October 26, and October 18 are not Argentina's independence dates.

Bangladesh's Independence Day is March 26, 1971, marking the declaration of independence from Pakistan. November 30, July 3, and July 21 are not Bangladesh's independence dates.

Brazil's Independence Day is September 7, 1822, when Prince Dom Pedro declared independence from Portugal. September 22, 28, and 30 are not Brazil's independence dates.

Philippines' Independence Day is June 12, 1898, commemorating declaration of independence from Spain. July 28, May 15, and December 1 are not Philippines' independence dates.

Singapore celebrates its National Day on August 9, commemorating its independence from Malaysia in 1965. This is the country's most important national holiday.

Sri Lanka celebrates its Independence Day on February 4, marking the country's independence from British rule in 1948. This is a major national holiday.

The United States celebrates Independence Day on July 4, commemorating the adoption of the Declaration of Independence in 1776. This is a foundational date in American history.

The Philippines celebrates Independence Day on June 12, marking the country's independence from Spanish colonial rule in 1898. This is a major national holiday in the Philippines.

Singapore celebrates National Day on August 9, commemorating its independence from Malaysia in 1965. This is Singapore's most important national holiday.

Sri Lanka celebrates its Independence Day on February 4, 1948, when the country gained independence from British rule. This is the correct and historically accurate date.

The United States celebrates its Independence Day on July 4, 1776, commemorating the adoption of the Declaration of Independence. This is the foundational date of American nationhood.

In a plane mirror, a virtual image is formed because the reflected rays diverge and appear to originate from a point behind the mirror. The image is also upright. Since all these characteristics describe the virtual image formation, 'all of the above' is correct.

Fiber optic cables transmit light through total internal reflection, where light travels through the core by repeatedly reflecting off the cladding boundary at angles greater than the critical angle. This principle allows signals to travel long distances with minimal signal loss. Dispersion and magnification are optical phenomena but not the transmission mechanism, and intensification doesn't occur.

Gamma rays have the highest frequency in the electromagnetic spectrum, ranging from 10^19 Hz and above. They are produced by radioactive decay, nuclear explosions, and cosmic events. The electromagnetic spectrum in order of increasing frequency is: radio waves, microwaves, infrared, visible light, UV, X-rays, and gamma rays.