Question Discussion & Solution

The correct answer is the Helium nucleus.

• Helium nucleus was the source of alpha particles in the Rutherford scattering experiment.
• Ernest Rutherford, a British scientist conducted an experiment and proposed the atomic structure of elements.

Key Points

• Rutherford conducted an experiment by bombarding a thin sheet of gold with α-particles.
• He then analysed the trajectory of these particles after their interaction with the gold foil.
• Since very few α-particles were deflected back, and only a few α-particles had nearly 180^o angle of deflection.
• Hence he concluded that the volume occupied by the positively charged particles in an atom is very small as compared to the total volume of an atom.

The correct answer is the formula bar.

Key Points

• By using the Defined names, the user can make the formulas much easier to understand and maintain.
• The user can define a name for a cell range, function, constant, or table. With the practice of using names in the workbook, the user can easily update, audit, and manage these names.
• The user Defined names will appear in the formula bar. 

Additional Information

• Steps to define names from a selected range
  • Select the range you want to name, including the row or column labels.
  • Select Formulas > Create from Selection.
  • In the Create Names from Selection dialog box, designate the location that contains the labels by selecting the Top row, Left column, Bottom row, or Right column check box.
  • Select OK.
• Steps to use names in formulas
  • Select a cell and enter a formula.
  • Place the cursor where you want to use the name in that formula.
  • Type the first letter of the name, and select the name from the list that appears.
  • Or, select Formulas > Use in Formula and select the name you want to use.
  • Press Enter.
• How to manage names in your workbook with Name Manager
  • On the Ribbon, go to Formulas > Defined Names > Name Manager. You can then create, edit, delete and find all the names used in the workbook. 

The correct answer is During 1982-83.

• Maharana Pratap Khel Award was instituted during 1982-83.

Key Points

• Maharana Pratap Khel Award:
  • The award is given by the State Sports Council for outstanding achievements at the National and International levels.
  • It was instituted in the year 1982-1983.
  • The awards consist of:
    • A Citation
    • Bronze Statue of Maharana Pratap

    • Cash prize of INR 1,00,000.

• Vashisth Puraskar is given to the outstanding Sports Coach of the state.
• Ashok Chandan is the current Sports Minister.

Additional Information

• Rajiv Gandhi Khel Ratna Award:
  • The Rajiv Gandhi Khel Ratna Award is India’s highest honour given for achievement in sports.
  • The award was instituted in the year 1991-92.
  • Vishwanathan Anand is the first winner of the award.

The correct answer is Barmer - Jalore.

Key Points

• Barmer-Jalore are major bajra producing districts.

Additional Information 

The correct answer is Switched Mode Power Supply.

• The full form of SMPS is Switched Mode Power Supply.

​Key Points

• SMPS or switched-mode power supply 
  • SMPS or switched-mode power supply is an electronic device that is used to convert AC to DC, AC to AC, DC to DC and DC to AC voltages. 
  • The circuit consists of a rectifier, voltage regulator transformer, and a filter. 
  • The input supply is turned On and Off by MOSFETs.
• Fundamentally, different types of circuits work with various kinds of power supplies such as SMPS.

Additional Information