Explanation

• Battery is a device that converts chemical energy into electrical energy.
• Batteries work by using a galvanic cell.
• It is an electrochemical device made up of two electrodes and an electrolyte solution.

Last verified on 16-03-2026

Explanation

The cube root of a number is a value that, when multiplied by itself three times, gives the original number.

In this case, 4 × 4 × 4 = 64, so 4 is the cube root of 64.

Last verified on 30-04-2026

Explanation

• Ohm's law, description of the relationship between current, voltage, and resistance.
• Georg Simon Ohm stated that the electric current through a conductor is directly proportional to the voltage across it, provided temperature remains constant. 
• This relationship is called Ohm’s Law.

Last verified on 22-05-2026

Explanation

• Frequency is the number of occurrences of a repeating event per unit of time.
• The SI unit of frequency is the hertz (Hz).
• 1 Hz = 1 cycle or vibration per second
• Unit: Hz = s⁻¹ (per second)
• Named after physicist Heinrich Hertz
• Used for waves, oscillations, sound, and electromagnetic radiation
• Derivations from other quantities: f = 1 / T
• Dimension T^−1

Explanation

• Surah Yaseen is known as the "Heart of the Holy Quran."
• It is the 36th chapter of the Quran.
• It contains 83 verses.
• It is regarded as an earlier Meccan surah.

Additional information:

• Surah Ar-Rahman: "Aroos ul Quran" (the Bride of the Quran).
• Al-Fatihah (The Opening)
• Al-Baqarah (The Cow)
• Aali Imran (The Family of Imran)
• An-Nisa (The Women)
• Al-Maidah (The Table)

Last verified on 15-07-2026

Explanation

• Rukus in the Holy Quran: 558 / 540
• Verses (Ayat): 6,236 / 6,666
• Total Surahs: 114
• Makki Surahs: 86 (revealed in 13 years, mostly short Ayat)
• Madani Surahs: 28 (revealed in 10 years, mostly long Ayat)
• Total Juz': 30
• Sajda Tilawat: 14

Last verified on 19-07-2026

Explanation

The first constitution of Pakistan was enforced on March 23, 1956

Additional information

List of the Constitution of Pakistan 1947 to date

First:   1956 Constitution

• Adoption Date: 23rd March 1956

• Prime Minister: Chaudhry Muhammad Ali

• President: Iskander Mirza

Second: 1962 Constitution

• Adoption Date: 8th June 1962

• Prime Minister: Muhammad Ayub Khan (also President at the time)

Third: 1973 Constitution

• Adoption Date: 12th April 1973

• Prime Minister: Zulfikar Ali Bhutto

• President: Fazal Ilahi Chaudhry

  
  

  Last updated by NA on 25-April-2026

Explanation

• Quaid-e-Azam Muhammad Ali Jinnah joined the All India Muslim League in 1913.
• He was about 37 years old when he became a member of the Muslim League.

Additional information:

• Quaid-e-Azam joined the Indian National Congress in 1906 and left it in 1920.

Last verified on 21-07-2026

Explanation

• Iskander Mirza became the first President of Pakistan on 23 March 1956.
• He was the last Governor-General of Pakistan before becoming President.
• He was associated with the Republican Party.
• He abrogated the 1956 Constitution and imposed martial law (1958).
• He also served earlier as Governor of Bengal (India) and Governor-General of Pakistan.
• Born: 13 November 1899, Murshidabad, India
• Died: 13 November 1969, London, UK (buried in Iran)
• He was the great-grandson of Mir Jafar.

Additional information:

• First President of Constituent Assembly of Pakistan: Quaid-e-Azam Muhammad Ali Jinnah
• First elected President of Pakistan: Field Marshal Ayub Khan

Explanation

• Pakistan's last census, the 7th Population & Housing Census, was indeed held in 2023  
• From March to May 2023
• Recorded Pakistan's population at 241.5 million (approx.)
• Pakistan's Constitution requires a census every 10 years.

There are a total of seven censuses held in Pakistan

1951 (First census)

1961 (Second census)

1972 (Third census)

1981 (Fourth census)

1998 (Fifth census)

2017 (Sixth census)

2023 (Seventh, first digital census) 

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 Last updated by NA on 05-11-2026