Question Discussion & Solution

The correct answer is ALU.

• The part of the CPU that performs logical operations is called ALU.

​Important Points

• There are 2 parts of the CPU:
  • Arithmetic and logic unit (ALU)
  • Control Unit

Key Points

• The arithmetic and logic unit (ALU)
  • The arithmetic and logic unit (ALU) is where the CPU performs the arithmetic and logic operations.
  • Examples of arithmetic operations are addition, subtraction, multiplication, and division.
  • Examples of logic operations are comparisons of values such as NOT, AND, and OR.
  • The Control Unit carries out instructions.

Additional Information

• The central processing unit (CPU)
  • The computer's central processing unit (CPU) is the device of a computer that retrieves and executes instructions. 
  • The major types of CPU are classified such as:
    • Single-core processor
    • Dual-core processor
    • Quad-core processor
    • Hexa core processor

The correct answer is to Correct the eye defects.

• Lenses are widely used in spectacle to correct eye defects.
• There are three common defects of vision that can be corrected with the help of suitable spherical lenses (convex lenses or concave lenses).
• Myopia is also known as Short-sightedness or nearsightedness.
  • Due to this defect, the person cannot see the distant objects clearly but he/she can see the nearby objects clearly.
  • The far point of the eye having myopia is less than infinity.
  • The defect is caused due to the high converging power of eye-lens or due to the eyeball being too long.
  • It can be corrected by making use of spectacles containing concave lenses.
• Hypermetropia is also known as Long-sightedness or farsightedness.
  • Due to this defect, the person cannot see the nearby objects clearly but he/she can see the distant objects clearly.
  • The near point of a hypermetropic eye is more than 25 centimetres away.
  • The defect is caused due to the low converging power of eye-lens or due to the eye-ball being too short.
  • It can be corrected by making use of spectacles containing convex lenses.
• Presbyopia is a vision disease caused mostly in old age.
  • The ciliary muscles become weak and the eye-lens become rigid and the eye loses its power of accommodation in old age in this vision defect.
  • In Presbyopia the person cannot see the nearby objects clearly due to loss of power of accommodation of the eye.
  • The near point of the old person having presbyopia gradually reduces and becomes much more than 25 centimetres away.
  • It can be corrected by making use of spectacles containing convex lenses.
• A person suffering from both Myopia and Hypermetropia uses spectacles having bifocal lenses in which the upper part consists of a concave lens to correct myopia and the lower part consists of a convex lens to correct hypermetropia.

J.K Rowling – She is a British writer.

Chetan Bhagat – He is an Indian writer.

Premchand – He was an Indian writer.

R.D Burman – He was an Indian music director.

The pattern followed here is:

​The correct answer is Jain temples.

• Mewa Nagar, a town in Barmer district of Rajasthan is famous for Jain temples.

​Key Points

• Mewa Nagar, Barmer district
  • The old name of this village was Veerampur and it is said that it was built in the 12th or 13th century. 
  • There are 3 Jain temples and a Vishnu temple here:
    • The largest and oldest temple here is of Nakoda Parshwanath. 
    • Other Jain temples are dedicated to Rishbhadeva and Shantinath. 

Additional Information

• Meva Nagar is built on a hillside. 
• This hill is known as the town's goats and it is located at a distance of 8 km from Balotar Nagar.
• There are many historical inscriptions here. 
• A fair is held here every year in the month of Pus.