Tag: science & technology

Questions Related to science & technology

Multiple choice general knowledge science & technology
  1. MAYA

  2. SWF

  3. CAD

  4. Adobe Illustrator

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Autodesk Maya (MAYA) is a professional 3D computer graphics software widely used in the film industry for creating visual effects and animation. It was indeed used in the Harry Potter films. SWF is a Flash format, CAD is for technical design, and Adobe Illustrator is for 2D vector graphics - none are primary VFX tools for major films.

Multiple choice general knowledge science & technology
  1. Black hole is a very high density compact mass which bends the space-time curve in such a manner that not even light can escape from it.

  2. A bright star after completing its life becomes a black hole.

  3. A very bright and dense lump of mass whose gravitation is strong enough to let nothing escape from it.

  4. none of these

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A black hole is formed when a massive star collapses under its own gravity, creating a region where spacetime is so extremely curved that the escape velocity exceeds the speed of light. The boundary of no return is called the event horizon, and nothing including electromagnetic radiation can escape from within it. This makes black holes invisible to direct observation, though we can detect them through their gravitational effects on nearby matter.

Multiple choice general knowledge science & technology
  1. a very shining dot in sky.

  2. a blck dot among countless shining stars

  3. a reddish dot in sky

  4. like a star only but it doesn't twinkle.

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Black holes themselves are invisible because no light can escape them. However, we can observe them indirectly through their gravitational effects on surrounding matter, such as accretion disks of superheated gas emitting radiation, or stars orbiting an invisible mass. Against a bright background like a starfield, a black hole appears as a dark silhouette blocking light from behind it.

Multiple choice general knowledge science & technology
  1. mass

  2. charge

  3. angular momemtum

  4. all of the above

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

According to the no-hair theorem in physics, a stable black hole can be completely characterized by only three externally observable classical parameters: mass, electric charge, and angular momentum. All other information about the matter that formed the black hole is lost behind the event horizon. Therefore, all three properties are possessed by a stable black hole.

Multiple choice general knowledge science & technology
  1. Sir Newton

  2. Aryabatta

  3. Galelio

  4. Prof Radhakrishan

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Newton's Second Law of Motion is expressed as F = ma (Force = mass × acceleration). This fundamental law was formulated by Sir Isaac Newton and published in his Philosophiæ Naturalis Principia Mathematica in 1687. It states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

Multiple choice general knowledge science & technology
  1. Leopard

  2. Giant Panda

  3. Golden Monkey

  4. Lion

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Giant Panda has been classified as a vulnerable species by the IUCN Red List due to habitat loss, poaching, and fragmentation. Conservation efforts in China have helped increase their population, but they remain threatened. While leopards and lions are also threatened in certain regions, the Giant Panda has been the most prominent conservation symbol for endangered species.

Multiple choice general knowledge science & technology
  1. Buffalo

  2. Black hole

  3. Human Hair

  4. Black Paint

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In thermodynamics, a perfect black body is an idealized physical body that absorbs all incident electromagnetic radiation regardless of wavelength or angle of incidence. Black holes are considered the closest physical approximation to perfect black bodies because their event horizons trap all radiation. The term 'black body' in physics refers to this ideal absorber, not actual black objects like buffalo or black paint.

Multiple choice general knowledge science & technology
  1. Mad Triangle

  2. Bingo Love Triangle

  3. Bermuda Triangle

  4. Zoluya Triangle

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Bermuda Triangle, also known as the Devil's Triangle, is a loosely-defined region in the western part of the North Atlantic Ocean. It's infamous for a number of alleged mysterious disappearances of ships and aircraft, though scientific studies show no such evidence.

Multiple choice general knowledge science & technology
  1. Manu Prasad

  2. Bear Gryll

  3. Steve Irwin

  4. Monte Joseph

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Steve Irwin, known as 'The Crocodile Hunter,' was the famous Australian wildlife expert and conservationist who tragically died in 2006 after being pierced in the chest by a stingray barb while filming a documentary. He was beloved for his enthusiastic wildlife education and conservation efforts.

Multiple choice general knowledge science & technology
  1. hyperopia

  2. farsightedness

  3. myopia

  4. hypermetropia

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Myopia, commonly known as nearsightedness or short-sightedness, is the inability to see distant objects clearly. The question has typos (farby objectsc) but correctly identifies myopia as the condition where distant vision is blurry while close vision remains clear.