Explanation

• Venus is the brightest planet.
• It has an atmosphere but no moons.
• It's identical in size, chemistry and gravity.
• It has volcanoes, mountains and sand.
• It's also called Sister Planet of the Earth.

 Last updated on 12 NOV 2026

Explanation

• Mars is known as the Red Planet due to its reddish appearance.
• Its surface contains iron oxide (rust) which gives it a red color.
• It is the 4th planet from the Sun in the solar system.
• Mars has two small moons: Phobos and Deimos.
• Mars is often called the “planet of future exploration”.

Last verified on 11-11-2026

Explanation

• Rear view mirrors in vehicles are convex mirrors.
• They give a wider field of view.
• Images formed are virtual, upright, and smaller.
• This helps drivers see more traffic behind them.
• It is a curved mirror that bulges outward.
• It is commonly used in side mirrors of cars, buses, and motorcycles.

Last verified 26-04-2026

Explanation

• An electric generator is a device that converts mechanical energy into usable electrical energy.
• This process is based on the principle of electromagnetic induction.
• Discovered in 1831 by British scientist Michael Faraday.

Last verified on 27-04-2026

Explanation

• The correct preposition with “proficient” is in.
• “Proficient in” means skilled or expert in a subject.
• It is commonly used with subjects like mathematics, English, science.

Last verified on 27-04-2026

Explanation

• The famous book "Al-Qanun" (The Canon of Medicine) was written by Abu Ali Sina.
• It is also known as Avicenna. 
• The book covers medicine, diseases, and treatments.

Last verified on 27-04-2026

Explanation

• Ibn al-Haytham is known as the Father of Modern Optics.
• He made groundbreaking discoveries about light and vision.
• His famous book is Kitab al-Manazir (Book of Optics).
• His research was done around 1011–1021 AD.

Last verified on 27-04-2026

Explanation

• The sacred book of Zoroastrianism is the Zend Avesta (Avesta).
• It contains teachings of the prophet Zoroaster (Zarathustra).
• It focuses on the concept of good vs evil (Ahura Mazda vs Angra Mainyu).
• It is one of the oldest religious texts in the world.
• It was originally written in the Avestan language.

Last verified on 27-04-2026

Explanation

• A land tax imposed on non-Muslim cultivators and landlords was known as Kharaj
• Non-Muslim subjects paid kharaj on their lands;
• Muslim landowners generally paid 'ushr

Additional information:

• Jizyah: Personal tax on eligible non-Muslim adult males
• Khums: One-fifth (20%) of war booty and certain other specified gains
• Zakat: 2.5% annual tax on eligible Muslim wealth
• Ushr: One-tenth (10%) of agricultural produce from naturally irrigated Muslim-owned land

Last updated 08 Nov 2026 by NA

Explanation

• No Sajdas in Salat-e-Janaza.
• Namaz-e-Janazah is performed standing in line.
• It includes 4 Takbeers.
• It is Farz-e-Kifaya.
• The first Namaz-e-Janazah performed by the Holy Prophet ﷺ was for Asad bin Zaraara (RA).

Last updated 08 Nov 2026 by NA