Question Discussion & Solution

The correct answer is Vitamin B1.

Key Points

• When rice is produced and not polished it is called brown rice. 
• Brown rice is rich in Vitamin B1. 
• When brown rice is polished, rice loses many vitamins and minerals including Vitamin B1 through the bran.
• Vitamin B1 also called thiamine is an essential vitamin, a deficiency of which is known to cause beriberi.

Additional Information

The correct answer is New Delhi.

• The "Indian Sports Summit - Fitness: $ 10 Billion Opportunity" was organized in New Delhi.

Key Points

• The event was launched by Prime Minister Narendra Modi.
• The aim event was focused on driving objective of ‘Sports and Industry’ by various initiatives, advocating for new policies for the sector, encourage investments in the sector of sports, create a roadmap in encouraging fitness programmes in school education and industry participation in the FIT INDIA Movement.
• Current Youth Affairs and Sports Minister is Mr Kiren Rijiju.

CONCEPT:

• Frequency (f): The number of waves that pass a given point per second is called frequency.
  • The unit of frequency is vibration per second or Hertz.

• Time period (T): The time taken to complete one full oscillation or cycle by the Wave is called the time period.

  • The SI unit of the time period is second (s).

EXPLANATION:

• From the above table, it is clear that time is the physics quantity that has the same unit in both C.G.S and the M.K.S system.

CONCEPT:

Nuclear reactor:

• In a nuclear reactor, the energy is generated by a nuclear fission reaction.
• In a nuclear reactor, there is a concrete chamber and in this concrete chamber, there is a steel vessel. In this steel vessel, the nuclear fission reaction takes place.
• Fuel rods: Fuel rods are placed inside the steel chamber.
  • These rods are made of fissionable material. Generally, fuel rods are made of uranium-235, thorium, etc.
• Moderator: It is used to decrease the speed of fast-moving neutrons.
• Control rods: These rods are placed between the fuel rods. It is used to control the chain reaction. Control rods are generally made of cadmium.
  • The nuclear reactors are controlled by means of control rods which are made of a strongly neutron-absorbent material such as boron or cadmium (Cd).
• Coolant: It is used to absorb heat produced during the reaction.

EXPLANATION:

• Moderators are used to slow down the neutrons in order to carry out effective nuclear fission and also absorb neutrons. 
• The main reason why heavy water is used as the moderator is that it captures less number of neutrons compared to normal water Hence, option 2 is the answer. 

The correct answer is Banded Column.

• Banded Column is used in Ms-Word to make the formatting of even columns different from subject columns.

Key Points

• Banded Column 
  • ​Adding colour to alternate columns.
  • Banded columns are available in the Design tab.
  • Excel’s Conditional Formatting feature allows us to apply cell shading to every other row in a worksheet.
• • By selecting the range we want to apply banded columns, and then click Conditional Formatting > New Rule under Home tab.
  • For applying banded columns, we can use this formula =MOD(COLUMN(),2)=0.

​Additional Information

• Banding
  • Adding colour to alternate rows or columns called banding.
  • It can make the data in our worksheet easier to scan. 
• Banded rows
  • The term banded rows are referring to the shading of alternating rows in a worksheet.
  • Excel’s Conditional Formatting feature allows us to apply cell shading to every other row in a worksheet.