Explanation

Given:

A ∪ B = A ∩ B

This equation implies that every element that is in A or B (or both) is also in both A and B.

This can only be true if:

A = B

or, in other words, A and B have exactly the same elements.

Explanation

Port Qasim (Bin Qasim) is Pakistan’s second-largest and busiest seaport after Karachi Port.

It handles a large volume of cargo, including industrial and commercial shipments.

Explanation

A screw gauge (micrometer) measures very small lengths with high precision, up to 0.01 mm.

It is commonly used to measure wire thickness and small objects accurately.

Explanation

To solve the equation, find a common denominator:

x/2 + x/3 = 5

The least common multiple of 2 and 3 is 6:

(3x + 2x) / 6 = 5

Combine like terms:

5x / 6 = 5

Multiply both sides by 6:

5x = 30

Divide by 5:

x = 6

Explanation

Endurance is the ability to sustain prolonged physical activity without fatigue.

It is crucial for long-distance races, as it helps athletes maintain stamina over extended periods.

Explanation

The wrist is made up of eight small bones called carpals.

These bones provide flexibility and movement to the wrist joint.

Metacarpals are found in the palm.

Metatarsals are in the foot.

Explanation

إِنَّمَا بُعِثْتُ مُعَلِّمًا کا ترجمہ "مجھے تو معلم بنا کر بھیجا گیا ہے" بنتا ہے۔

یہ حدیث نبی کریم ﷺ کی بعثت کے مقصد یعنی تعلیم و ہدایت کو واضح کرتی ہے۔

Explanation

پاکستان اور ازبکستان کے درمیان پہلا فضائی معاہدہ 1993 میں اسلام آباد میں ہوا۔

اس معاہدے کا مقصد دونوں ممالک کے درمیان فضائی روابط کو فروغ دینا تھا۔

Explanation

ارے مخاطب کو بلانے یا متوجہ کرنے کے لیے استعمال ہوتا ہے، اسی لیے یہ حرف ندا ہے۔

قواعد میں حروف ندا الفاظ یا جملوں کے آغاز میں آکر کسی کو پکارنے کے لیے استعمال کیے جاتے ہیں، جیسے "اے، او، ارے" وغیرہ۔

Explanation

The refractive index (n) is defined as:

n = Speed of light in air / Speed of light in medium

Given:

n = 1.5

Speed of light in air = 3 × 10⁸ m/s

Rearrange the formula to solve for Speed of light in glass:

Speed of light in glass = Speed of light in air / n

= (3 × 10⁸ m/s) / 1.5

= 2 × 10⁸ m/s