Explanation

• Wilhelm Conrad Rontgen discovered X-rays
• He was discovered on 8 November 1895.
• He got the Nobel Prize in Physics in 1901.

Additional questions

• The penetrating power of X-rays depends on their frequency

Last updated by NA on 05-11-2026

Explanation

• The first Constituent Assembly of Pakistan (1947–1954) was tasked with framing the constitution.
• It was dissolved by Governor-General Ghulam Muhammad on 24 October 1954.

Additional information:

• Assembly formed: 10 August 1947
• First Prime Minister: Liaquat Ali Khan
• Constitution eventually passed: 1956

Last updated by NA on 04-11-2026

Explanation

When fasting was made obligatory:

• Timing: Second year of Hijrah (2 AH / 624 CE), in the month of Sha'ban
• First fast: Ramadan 2 AH
• Key verse: Surah Al-Baqarah (183–185)
• Prophet's practice: Fasted Ramadan for 9 years (until 11 AH)
• Before Ramadan: Muslims fasted on Ashura (10th Muharram) and three days each month

Last updated by NA on 04-11-2026

Explanation

• Vitamin C deficiency → Scurvy
• Causes bleeding gums and poor wound healing.
• Vitamin C is important for collagen formation.
• Main sources: Citrus fruits, guava, tomatoes, and vegetables.

Last verified on 02-11-2026

Explanation

• All electromagnetic waves travel through a vacuum at 3x10^8 m/s.
• This is the speed of light (c).
• Radio waves, microwaves, visible light, X-rays and gamma rays all have the same speed in vacuum.

Last verified on 31-10-2026

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

• Al-Tauba does not begin with Bismillah.
• It is known by two names - At-Taubah and Al-Baraat.
• Surah Tauba is in 10 Parah.
• The number of Rukus in Surah Tauba is 16.
  
  
  

Additional information:

• Bismillah is repeated in the Holy Quran 114 Times.
• Surah Naml surah of the Holy Quran has Bismillah twice.

Last verified on 01-04-2026

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

• K2 is part of the Karakoram Range.
• It is located on the border between Baltistan, in the Gilgit–Baltistan region of Pakistan.

Additional information:

• K-2 is also known as Godwin Austin.
• 'K' standing for Karakoram.
• Mount K2 is the second-highest mountain on Earth.
• Mount K2 is located on the border of Pakistan and China.
• The height of K2 is 8,611 meters.

Last verified on 12-03-2026

Explanation

• The Diamer-Bhasha Dam is constructed on the Indus River.
• It is located between Kohistan (Khyber Pakhtunkhwa) and Diamer (Gilgit-Baltistan).
• The foundation in 1998 by Prime Minister Nawaz Sharif.
• Opened: 2028
• Height: 272 m

Additional information:

Last verified on 20-06-2026