Explanation

A rectifier is an electrical device that converts Alternating Current (AC) into Direct Current (DC).

It works by allowing current to flow only in one direction using diodes.

Explanation

Priestly discover oxygen in 1776.

Oxygen makes up about 46-50% of the Earth's crust by weight, mainly in the form of oxides and silicates.

It is also a major component of water (H₂O).

It is abundant in the atmosphere as O₂.

Explanation

Aristotle is widely considered the founder of meteorology.

He first used the term "meteorology" in the fourth century BC, although his work on weather was based on observation and lore rather than modern scientific methods.

Explanation

The wind is used to produce electricity by converting the kinetic energy of air in motion into electricity.

Wind energy is the energy obtained from the force of the wind.

The unit of wind is: joule

Explanation

"Muhammad Rasool Ullah" begins with a noun, so it is a Jumla Ismia (nominal sentence).

It conveys information, making it Khabria (informative).

Explanation

Hazrat Khadija was the wife of Holy prophet (P.B.U.H).

Hazrat Abu Talib was the uncle of the Holy prophet (p.b.u.h).

Year of sorrow means غم کا سال

Explanation

From 750 - 1258

1st ruler: As-Suffah

Longest tenure: Rashidun

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Remember Tips

یاد کرنے کے لیے

1. Rashidin -30 years
2. Umayyad -100 years
3. Abbasid - 500 years
4. Ottoman Empire - 600 years

Explanation

Miqat is a principle boundaries at which Muslim pilgrims intend to perform the Hajj must enter the state of Ahram.

• Typically there are 5 Miqats:
• 1. Yalamlam Miqat: This is the Miqat for the people of Yemen, India, Pakistan, China, South Africa, Nigeria, Japan.
• 2. Al-Juhfah: This Miqat is also known as Rabigh. This is the Miqat for the people of North America, North Africa, Jordan, Lebanon, Europe, Turkey, Syria, Egypt, Algeria, Sudan.
• 3. Dhat Irq: This is the Miqat for the people of Iraq, Iran, China, and Russia.
• 4. Qarn Al-Manazil (Miqat Taif): This Miqat is also known as Al Sail Al Kabir. This is the Miqat for the people of U.A.E, Oman, Pakistan, Australia, Malaysia, Singapore, Najd, Riyadh, Dammam, and Khobar.
• 5. Dhul Hulayfah: This Miqat is also known as Abyar Ali. This Miqat is for the people of Medina.

Explanation

The saying "Religion is Good Will" is attributed to the Holy Prophet Muhammad (SAW) in Hadith literature.

It emphasizes that sincerity and well-wishing toward others are core principles of Islam.

Explanation

Let's denote the number as x.

Given that 2/3 of x decreases its 4/5 by 8:

(2/3)x = (4/5)x - 8

To solve for x, let's multiply the entire equation by 15 (the least common multiple of 3 and 5) to eliminate the fractions:

10x = 12x - 120

Subtract 10x from both sides:

0 = 2x - 120

Add 120 to both sides:

120 = 2x

Divide both sides by 2:

x = 60