Astronomy & Medical Science Quiz

Valentina Tereshkova became the first woman in space on June 16, 1963, piloting the Vostok 6 mission. She spent almost three days in orbit and remains the only woman to have flown a solo space mission.

Black holes form when massive stars (at least 25x solar mass) undergo supernova explosions, leaving behind cores dense enough that gravity prevents even light from escaping. Fusion reactions power stars but don't directly create black holes. Black holes can form through other mechanisms too, but stellar collapse is the primary path.

True. General relativity predicts gravity bends spacetime itself, so light passing near massive objects follows curved paths. This was first observed during a 1919 solar eclipse, confirming Einstein's theory. Black holes, with extreme gravity, dramatically bend nearby light.

A white hole is a hypothetical region of spacetime that cannot be entered from the outside, though matter and energy can escape from it - essentially the theoretical time-reversal of a black hole. While white holes exist in general relativity mathematics, they have never been observed and remain theoretical constructs. Options B, C, and D are clearly incorrect or nonsensical responses.

Titan is Saturn's largest moon and the second-largest natural satellite in our solar system. It is larger than the planet Mercury and has a thick atmosphere. The other options are moons of Uranus or astronomers' names.

Voyager 1 launched on September 5, 1977 and is currently the most distant human-made object from Earth. Though Voyager 2 launched 16 days earlier, Voyager 1 became the first to reach Jupiter and Saturn. The Cassini-Huygens mission was a later Saturn-focused project.

The stapes (misspelled as 'Stepis') is the smallest bone in the human body, located in the middle ear. It's approximately 3mm × 2.5mm. The other ear bones are malleus (misspelled as 'Melius') and incus. 'Feemar' appears to be a misspelling of 'Malleus'. Note that the options contain spelling errors, but the intended answer is correct.

The liver is the largest internal organ and largest gland in the human body, weighing approximately 1.4-1.6 kg in adults. It performs vital functions including detoxification, protein synthesis, and bile production. The brain, while heavy, is not classified as a gland. Kidneys, eyes, and stomach are smaller than the liver.

Howrah Bridge (now Rabindra Setu) is a cantilever bridge that spans the Hooghly River in Kolkata. When commissioned, it was the third-longest cantilever bridge in the world and remains the largest cantilever bridge in India. Bally Bridge (Vidyasagar Setu) is a cable-stayed bridge, not a cantilever bridge.

VY Canis Majoris is one of the largest known stars by radius and volume. This red hypergiant star in the constellation Canis Major has an estimated radius approximately 1,420 times that of the Sun. The Abell designations (Abell 2029, Abell 2049) refer to galaxy clusters, not individual stars. VY Canis Minor is not recognized as a major star designation.

Fruit flies (Drosophila melanogaster) were the first animals intentionally sent into space. On February 20, 1947, the United States launched fruit flies aboard a V-2 rocket to study the effects of radiation exposure at high altitudes. They were recovered alive. Monkeys, rats, and dogs (not birds) were sent later - Laika (dog) in 1957, and Albert II (monkey) in 1949.

Black holes are described by Einstein's theory of general relativity, specifically the Schwarzschild and Kerr metrics derived from Einstein's field equations. Option B correctly identifies this, though the note about physics breaking at the singularity is an important nuance. Special relativity (C) doesn't account for gravity, while Pascal's Law (A) and Brownian motion (D) are unrelated to black hole physics.

Swine flu (H1N1) primarily infects pigs, which is why it's called 'swine' flu. The virus originated in pig populations and can spread from pigs to humans. While humans can transmit it to each other, pigs remain the natural reservoir host. Note: 'Buffalow' in option D is misspelled (should be 'Buffalo').

Swine flu is caused by the H1N1 influenza virus strain. The H and N refer to hemagglutinin and neuraminidase proteins on the virus surface. The 2009 pandemic was caused by a novel H1N1 strain that was a reassortment of bird, swine, and human flu viruses. Options A and C have '!' instead of '1', and option D has incorrect hyphen placement.

Tamiflu (oseltamivir) is the antiviral medication used to treat swine flu in India and globally. It works by inhibiting the neuraminidase enzyme, preventing the virus from spreading in the body. It's most effective when taken within 48 hours of symptom onset. Options A, C, and D are misspelled versions.

Swine flu symptoms are indeed similar to regular seasonal flu symptoms. Both include fever, cough, sore throat, body aches, headache, chills, and fatigue. The main difference is that swine flu can cause more severe respiratory complications in some cases. This similarity makes diagnosis difficult without laboratory testing.

The 2009 swine flu pandemic was first detected in Mexico, specifically in the state of Veracruz in early 2009. The virus then quickly spread to the United States and globally. While the earliest confirmed cases were in Mexico, genetic analysis suggests the virus may have been circulating undetected beforehand. Note: 'Singpore' in option C is misspelled.

Basil (Tulsi in Hindi) leaves are traditionally used in India as a home remedy to prevent swine flu. Many people consume tulsi leaf paste or tea daily during outbreaks, believing it boosts immunity. However, scientific evidence for its effectiveness against H1N1 is limited, and it should complement, not replace, medical advice and vaccination. Option A is misspelled.