Explanation

• 0.75 is a terminating decimal, which can be written as 75/100.
• Simplifying 75/100 gives 3/4, making it a rational number.

Last verified on 10-02-2026

Explanation

• JD Vance is the current vice president since January 20, 2025
• Replaced Kamala Harris.
• He is the 50th vice president of US.
• He belongs to Republican Party.
• 
  

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Updated & verified on 08-04-2026

Explanation

• In MS Excel, every formula and function starts with the equal sign (=).
• The = tells Excel that the cell contains a formula, not plain text.
• Functions such as SUM, AVERAGE, and IF also begin with =.
• Without the =, Excel treats the entry as ordinary text.

Last verified on 10-02-2026

Explanation

• Cache Memory — the buffer between CPU and RAM.

  • Stores frequently used data for quick CPU access
  • Faster but smaller than RAM
  • Falls between the CPU and main memory
  • Has levels (L1, L2, L3) — L1 is fastest/closest to CPU
  • Reduces memory access time, boosting performance

Additional information:

• RAM = the main memory itself
• ROM = read-only, holds firmware (BIOS)
• SRAM = a type used to build cache, not the buffer itself

Last updated 07-09-2026 by NA

Explanation

• Rutherford’s gold foil experiment (1911) showed that an atom has a small, dense, positively charged center called the nucleus.
• The mass of the atom is concentrated in the nucleus, while most of the atom is empty space.

Additional information:

• Nucleus contains: Protons (+) and neutrons (neutral)
• Electrons move around the nucleus in mostly empty space
• The experiment involved alpha particles being deflected by the nucleus.

Last verified on 10-02-2026

Explanation

• Air Chief Marshal Zaheer Ahmad Babar Sidhu 
• 23rd Chief of Air Staff (CAS) of the Pakistan Air Force.
• He assumed office on 19 March 2021.
• He replaced Air Chief Marshal Mujahid Anwar Khan.
• He joined PAF in 1986 as a fighter pilot (GD Pilot branch).
• He belongs to Sidhar, Gujrat (Punjab).

Last updated 17 july 2026 by NA

Explanation

• Vatican City is the smallest country in the world.
• It is a city-state surrounded by Rome, Italy.
• Land Area: About 0.44 to 0.49 square kilometers (109 acres)
• Population: Around 800 to 900 people
• It serves as the headquarters of the Roman Catholic Church.
• It is located in Europe.

Additional information:

• Smallest Muslim country: Brunei
• Smallest republic: Nauru
• Smallest SAARC country: Maldives
• Largest Muslim country (population): Indonesia

Last updated by NS on 5-09-2026

Explanation

• Acquaintance means واقف کار
• Familiarity means واقفیت

Last verified on 10-02-2026

Explanation

• Pakistan and Saudi Arabia have signed a landmark Strategic Mutual Defence Agreement.
• Signed on 17 September 2025.
• This agreement is being considered the most significant upgrade in Pakistan-Saudi defence relations in decades.
• Signed in Al-Yamamah palace Riyadh, Saudi Arabia.
• Singed by Pakistani PM Shehbaz Sharif and Saudi Crown Prince Mohammed bin Salman

Additional Information:

• This agreement comes in the wake of Israel’s strike on Qatari capital Doha on 9 September 2025.

 Last verified on 10-02-2026

Explanation

• The Indian strikes named Operation Sindoor occurred around 7 May 2025.
• Pakistan’s military later announced its own response named Operation Bunyan-um-Marsoos.

Last verified on 10-02-2026