Explanation

0.777777 ÷ 0.111 = 7.007 (approx)

Last verified on 03-04-2026

Explanation

• Electron is a fundamental particle with much smaller mass than protons and neutrons.
• Proton and Neutron are roughly 1836 times heavier than an electron.
• Masses (approx.): Electron – 9.11×10⁻³¹ kg, Proton – 1.67×10⁻²⁷ kg, Neutron – 1.67×10⁻²⁷ kg.

Last verified on 03-04-2026

Explanation

• Ibn Sina compiled The Canon of Medicine around 1025 AD.
• It is a five-volume medical encyclopedia written in Arabic.
• The book remained a standard medical reference in Europe and the Muslim world for centuries.

Last verified on 03-04-2026

Explanation

• Masjid al-Khayf is located in Mina, near Makkah.
• The Prophet Muhammad (PBUH) offered prayers here and delivered a sermon during Hajjat al-Wada (10 AH).
• In this mosque almost 70 Prophets are buried.

Last verified on 03-04-2026

Explanation

• Adi ibn Hatim accepted Islam in 9th Hijri (630 AD).
• He was the son of Hatim al-Tai, a famous Arab known for generosity.
• Before accepting Islam, Adi remained opposed to Islam for about 20 years.

Last verified on 03-04-2026

Explanation

• “Red letter day” refers to a very important or special day in someone’s life.
• It comes from calendars where important dates were marked in red.

Last verified on 03-04-2026

Explanation

• “Shell out” means to pay money, often unwillingly or with effort.
• It is commonly used when someone spends a large or unexpected amount of money.

Last verified on 03-04-2026

Explanation

• "Everyone" is an indefinite pronoun as it refers to a non-specific group of people.
• It does not point to any particular individual but refers collectively to all people.

Last verified on 03-04-2026

Explanation

• The Karakoram Highway (KKH) is also known as the Friendship Highway in China and N-35 in Pakistan.
• It was built by the governments of Pakistan and China and completed in 1979.
• Starting from Hassan Abdal, it spans 1,300 (810 miles) km in Pakistan.
• The Silk Route is also referred to as the Karakoram Highway.
• The Karakoram Range, located between China and Pakistan.
• It is traversed by the Karakoram Highway.
• It connects the two countries via the Khunjerab Pass.

Last verified on 03-04-2026

Explanation

• Optical Fiber Systems are utilized in Telecommunication Systems to transmit data as light signals through thin glass or plastic fibers.
• It enabling high-speed internet, voice, and data communications over long distances.

Last verified on 03-04-2026