Tag: science & technology

Questions Related to science & technology

which vitamin s required is post-translational of certain proteins required for blood coagulation??
general knowledge science & technology

  1. Vitamin A

  2. Vitamin C

  3. Vitamin K

  4. Vitamin J

Show answer
Correct Option: C

A method for quantitatively determining the concentration of an antibiotic by its effect in inhibiting the growth of a susceptible microorganism. -- what s this method known as??

general knowledge science & technology

  1. antibiotic assay

  2. antibody assay

  3. plaque assay

  4. Bioassay

Show answer
Correct Option: C

which gas is known as laughing gas ?

general knowledge science & technology

  1. NO2

  2. NO2+N2O

  3. N2O

  4. CHNO2N4

Show answer
Correct Option: C

AI Explanation

To answer this question, you need to be familiar with the common name of certain gases.

The gas known as "laughing gas" is nitrous oxide, which is represented by the chemical formula N2O.

Let's go through each option to understand why it is correct or incorrect:

Option A) NO2 - This option is incorrect. NO2 is nitrogen dioxide, not nitrous oxide.

Option B) NO2 + N2O - This option is incorrect. NO2 is nitrogen dioxide, and N2O is nitrous oxide. The correct representation for nitrous oxide is N2O, not NO2 + N2O.

Option C) N2O - This option is correct. N2O is the chemical formula for nitrous oxide, which is commonly referred to as "laughing gas."

Option D) CHNO2N4 - This option is incorrect. The chemical formula CHNO2N4 does not represent nitrous oxide.

Therefore, the correct answer is option C) N2O. This option is correct because N2O is the chemical formula for nitrous oxide, which is commonly known as "laughing gas."

The simplest black hole which has mass but neither electric charge nor angular momentum is known as ___.
general knowledge science & technology

  1. Charged black holes

  2. Kerr metric black holes

  3. Schwarzschild black holes

  4. none of these

Show answer
Correct Option: C

A boundary in spacetime through which matter and light can only pass inward towards the mass of the black hole and not outward is known as ___.
general knowledge science & technology

  1. event horizon

  2. black boundary

  3. loop horizon

  4. gravity boundary

Show answer
Correct Option: A

To a distant observer, clocks near a black hole appear to tick more slowly than those further away from the black hole.
general knowledge science & technology

  1. True

  2. False

Show answer
Correct Option: A

An object falling into a black hole appears to slow down as it approaches the event horizon, taking an infinite time to reach it.
general knowledge science & technology

  1. True

  2. False

Show answer
Correct Option: A

Singularity with reference to black holes is best defined as __.
general knowledge science & technology

  1. Where the spacetime curvature becomes infinite.

  2. A reigon of infinite density.

  3. Where all the mass of black hole is concenterated.

  4. A reigon of zero volume.

  5. All of the above

Show answer
Correct Option: E

Rotating black holes are surrounded by a region of spacetime in which it is impossible to stand still, known as __.
general knowledge science & technology

  1. photon sphere

  2. ergosphere

  3. event horizon

  4. none of the above

Show answer
Correct Option: B

The main reason for formation of black hole is supposed to be __.

general knowledge science & technology

  1. gravitational collapse

  2. High-energy collisions

  3. both 1 and 2

  4. none of these

Show answer
Correct Option: A