Tag: science & technology

Quizzes (551) Questions (11015)

Questions Related to science & technology

Multiple choice general knowledge science & technology

Founder of Dell??

  1. Michael Clarke

  2. Stephen Howard

  3. Michael Douglas

  4. Michael Saul Dell
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Dell was founded by Michael Saul Dell in 1984 while he was a student at the University of Texas at Austin. The company was originally called PC's Limited. Michael Clarke, Michael Douglas, and Stephen Howard are not associated with Dell's founding.

Multiple choice general knowledge science & technology

founder of Apple??

  1. Steven Waugh

  2. Steve Jobs and Steve Wozniak

  3. Mark Jobs

  4. Y R Narashima Rao
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Apple was founded by Steve Jobs and Steve Wozniak in 1976. Steven Waugh is a cricketer, Mark Jobs is not a real person, and Y R Narashima Rao is unrelated to Apple's founding.

Multiple choice general knowledge science & technology

founder of Yahoo??

  1. Cheng Yang

  2. Hu Chang

  3. Jerry Yang and David Filo

  4. Michael Johnson
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Yahoo was founded by Jerry Yang and David Filo in 1994 while they were graduate students at Stanford. Cheng Yang, Hu Chang, and Michael Johnson are not related to Yahoo's founding.

Multiple choice general knowledge science & technology

founder of Microsoft??

  1. Bill Clinton

  2. Bill Gates

  3. Brian Adams

  4. Mike Gatting
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Microsoft was founded by Bill Gates along with Paul Allen. Bill Clinton is a former US president, Brian Adams is a musician (likely misspelled Bryan Adams), and Mike Gatting is a cricketer.

Multiple choice general knowledge science & technology

When someone can invisible?

  1. if light falling on body could be reflected upto 85%

  2. if light falling on body could be reflected upto 100%

  3. if someone travels with a speed of superjet

  4. its impossible
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

For an object to be invisible, it would need to reflect nearly 100% of light falling on it (or absorb and re-emit it perfectly), making it undetectable to the human eye. 85% reflection is insufficient, and traveling at high speed doesn't make things invisible.

Multiple choice general knowledge science & technology

Fountain is coming down from the top of the mountain though the height of the mountain is greater than ground water level, Due to

  1. capilary rise

  2. reverse osmosis

  3. cetrifugal force

  4. lunar attraction
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Capillary action allows water to rise against gravity through narrow spaces. This explains how water can emerge from mountain tops even when the groundwater level is below - it moves upward through porous rock and soil via capillary rise.

Multiple choice general knowledge science & technology

What do you mean by SHM?

  1. swasthi harmony mission

  2. simple henery's magnet

  3. simple harmonic motion

  4. simple hinge motion
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

SHM stands for Simple Harmonic Motion, a type of periodic motion where the restoring force is directly proportional to the displacement. The other options are made up phrases.

Multiple choice general knowledge science & technology

Who is responcible for accident in turning while vehicle moving with a greater speed?

  1. centripetal force

  2. centrifugal force

  3. horizontal factor

  4. tangential factor
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When a vehicle turns at high speed, the centrifugal force (the apparent outward force in a rotating reference frame) is responsible for accidents or skidding. Centripetal force is the inward force that keeps the vehicle on the curved path.

Multiple choice general knowledge science & technology

what is the scenario when a body moving with a speed of light?

  1. body dissappears

  2. body can control time constraint

  3. body simply lost its mass

  4. body converts into gas
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

According to relativity, as an object approaches the speed of light, time dilation occurs - time passes slower for the moving object relative to a stationary observer. The phrasing 'control time constraint' is awkward but refers to this relativistic time effect. Objects don't disappear or lose mass simply by moving at light speed.