Question Discussion & Solution

Concept:

• The laws dealing with ideal gases naturally called ideal gas laws, and the laws determined in the seventeenth century by Boyle's observational work and in the eighteenth century by Charles.
• The Boyles Law states that the gas pressure is inversely proportional to the gas volume for a given mass of gas stored at a constant temperature.
• Charles Law states that the gas volume is directly proportional to the gas temperature for a given fixed mass of gas stored at a constant pressure. 
• An ideal gas is a gas that follows the equation:

PV = nRT at all temperatures and pressure, where P = Pressure of the ideal gas. V = Volume of the ideal gas n = Amount of ideal gas measured in terms of moles 

R = Universal gas constant T = Temperature

Mole Concept -

•  The quantity one mole of a substance signifies 6.022 × 1023 number of particles of that substance which may be atoms, molecules, or ions.
• The quantity is a universal constant like Dozen, Gross, etc., and is known as Avogadro number, denoted by NA. after the scientist Amedeo Avogadro.
• Examples- In one mole of H2, there are 6.022 × 1023 molecules of hydrogen, and the number of atoms is 2 × 6.022 × 1023, as one molecule of hydrogen contains two-atom each.
• The mass of one mole of a substance is called its Molar Mass (M) or Atomic mass expressed in grams.
• The volume occupied by a mole of gas is 22.4 L at NTP, called its Molar Volume.
• The no. of moles (n) is calculated as =

The number of particles / Avogadro’s number.

To summarise, we can say, 

Calculation:

• The molar mass of 1 mole of H₂SO₄ is =

2 × 1 + 32 + 4 × 16 = 98g

• The molar mass of 1 mole of Silver, Ag is its molecular mass 108g.
• The molar mass of CO₂ is = 12 + 2× 16 = 44g.
• 44g of CO₂ means one mole.
• 1 mole of Oxygen weighs 16 + 16 = 32g.
• Hence, the highest mass is of 1 mole of Ag.

The correct answer is 2 ms^-2

• We know that according to Newton's 2^nd law, 
  • ​Force = Mass × Acceleration
  • or \((\vec F = m \times \vec a)\)
• Here, F = 100 N and Mass = 50 Kg
• So, 100 = 50x a ⇒ a = 100/50 = 2.
• Hence, the acceleration will be 2 ms^-2.

• Force: A force is something that changes the state of rest or motion of a body.
  • It causes the body to start moving if it is at rest or stops if it is in motion or deflects from the initial path.
  • Force is a vector quantity having SI unit Newton (N) and dimension (MLT^-2).
• According to Newton’s Second law of motion
  • The rate of change of momentum of a body is directly proportional to the resulting force acting on a body
  • Mathematically it can be expressed as 
• \(\vec F \propto \frac{{d\vec p}}{{dt}}\;or\;\vec F = m \times a\)

Concept:

The Android operating system was developed by Google for use in all of its touchscreen devices, tablets, and cell phones. This operating system was first developed by Android, Inc., a software company located in Silicon Valley before it was acquired by Google in 2005

The first public release of Android 1.0 occurred with the release of the T-Mobile G1 (aka HTC Dream) in October 2008. Android 1.0 and 1.1 were not released under specific code names.

Android name with their respective versions

Given code language:

'nee muk pic' means 'grave and concern';
'ill dic so' means 'every body else'; and
'tur muk so' means 'body and soul'.

So we can decode the following words:

muk - and

so' - body

'tur - soul

Proceeding ahead accordingly, the code for 'every' is either 'ill' or 'dic' and the code for 'concern' is either 'nee' or 'pic'.

The correct answer is Enticing or taking away or detaining with criminal intent a married woman.

 Key Points

• Section 498: Enticing or taking away or detaining with criminal intent a married woman:
  • Whoever takes or entices away any woman who is and whom he knows or has reason to believe to be the wife of any other man, from that man, or from any person having the care of her on behalf of that man, with the intent that she may have illicit intercourse with any person, or conceals or detains with that intent any such woman, shall be punished with imprisonment of either description for a term which may extend to two years, or with fine, or with both.
  • It is a  Non-cognizable offence which is Bailable in nature and triable by any magistrate.

Additional Information

• IPC Section 498-A: Husband or relative of husband of a woman subjecting her to cruelty.
• IPC Section 376: Punishment for rape.