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

• A bit (binary digit) is the smallest unit of data in a computer.
• It can have a value of 0 or 1, representing two possible states.

Additional information:

• 1 Byte = 8 bits
• 1 Kilobyte (KB) = 1024 Bytes
• 1 Megabyte (MB) = 1024 KB
• 1 Gigabyte (GB) = 1024 MB
• 1 Terabyte (TB) = 1024 GB

Last verified on 12-03-2026

Explanation

• The Qibla was changed in 2 AH (624 AD).
• It happened during the Zuhr (Dhuhr) prayer.
• This event took place about 18 months after Hijrah in Madinah.
• The Qibla was changed from Bait al-Maqdis (Al-Aqsa Mosque) to Kaaba.
• Masjid al-Qiblatain is the mosque where this change occurred.
• The first Qibla of Muslims was Al-Aqsa Mosque.
• The change of Qibla is mentioned in the Holy Quran (Surah Al-Baqarah).

Last verified on 25-05-2026

Explanation

• Issued by: General Pervez Musharraf
• Issue Date: 21 August 2002
• Purpose: Constitutional amendments and legal framework for the 2002 General Elections
• Related Amendment: 17th Constitutional Amendment (2003)
• Significance: Increased the powers of the President and restructured parts of Pakistan's constitutional system.

Additional information:

• LFO Issued by: General Yahya Khan
• Year: 1970
• Purpose: Legal framework for the 1970 General Elections
• Election Date: 7 December 1970
• Significance: Led to Pakistan's first nationwide general elections based on adult franchise.

Last verified on 10-07-2026

Explanation

• The SI unit of electric current is Ampere (A).
• Electric current measures the flow of electric charge.
• Defined using the elementary charge (e = 1.602176634 × 10⁻¹⁹ C).
• Named after: André-Marie Ampère (scientist).
• 1 Ampere = 1 Coulomb per second (1 A = 1 C/s).

Last verified on 08-06-2026

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

• World Health Organization (WHO) HQ: Geneva
• WHO founded: 7 April 1948
• WHO members: 194
• World Health Day: 7 April

Last verified on 08-02-2026

Explanation

• The sum of the three interior angles of a triangle is 180°.
• This rule applies to all types of triangles.
• If two angles are known, the third angle = 180° − (sum of the other two angles).
• It is a basic rule of geometry.
• This property is known as the Angle Sum Property.

Last updated 17 july 2026 by NA

Explanation

• Jasmine (Chambeli) is the national flower of Pakistan.
• It was chosen as the national flower in 1961.

Additional information:

• National Bird: Chukar
• National Animal: Markhor
• National Dish: Nihari
• National Fruit: Mango
• National Tree: Deodar
• National Flower: Jasmine
• National Vegetable: Lady Finger (Okra)

Last verified on 08-03-2026

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