Explanation

Radio waves frequency is measured in Hertz.

Hertz (Hz) quantifies the number of cycles per second of a radio wave.

This determining its frequency and position within the electromagnetic spectrum.

Explanation

Dr. Anita Zaidi is the first Pakistani woman to be elected to the US National Academy of Medicine in 2021.

She is recognized for her work in child health, vaccine development, and global health.

Explanation

• The Asian Games are also known as Asiad.
• Asiad is a continental multisport athletic event held every four years.
• The first Asian Games were organized in New Delhi, India in 1951.
• Asian games are regulated by the Asian Games Federation (AGF).
• Trick Asian contain Asiad word itself.

Explanation

The number of lakes in the Great African Lakes region is 7.

This region includes seven major lakes:

1. Victoria
2. Tanganyika
3. Malawi
4. Albert
5. Edward
6. Kivu
7. Turkana

Explanation

Calculation:

Let, the present age of A = A

2 years ago, his age = A - 2

2 years from now, his age = A + 2

According to the question,

⇒  =  1/A - 2 + 1/A + 2 = 2/3

⇒ 3(A + 2 + A - 2) = 2(A + 2)(A - 2)

⇒ 6A = 2(A2 - 22)

⇒ A2 - 3A - 4 = 0

⇒ A2 + A - 4A - 4 = 0

⇒ A(A + 1) - 4(A + 1) = 0

⇒ (A - 4)(A + 1) = 0

⇒ A = 4 or -1

Since, age can't be negative A = 4

∴ The present age of A is 4 years.

Explanation

Given that, P : Q = 8 : 15, Q : R = 3 : 2

P : Q : R = (8 x 3) : (15 x 3) : (15 x 2) = 24 : 45 : 30

∴ P : Q : R = 8 : 15 : 10

Here, consequent of first ratio should be equal to the antecedent of second ratio.

Explanation

یہ مصرعہ "بال جبریل" نامی کتاب میں ہے۔

"بال جبریل" (Gabriel's Wing)

معروف اُردو شاعر علامہ محمد اقبال کی ایک مشہور مجموعہ کلام ہے۔

یہ کتاب اقبال کے فلسفیانہ اور روحانی خیالات کا عکاس ہے۔

Explanation

He is the athlete who has won many competitions," the word "who" is a relative pronoun.

"Who" is a relative pronoun.

It is used to introduce a clause providing more information about "the athlete."

Explanation

واقعہ افک غزوہ بنی مصطلق میں ہوا۔

Explanation

چرنوبل حادثہ 1986 میں یوکرین میں پیش آیا، جو ایک ایٹمی پاور پلانٹ کے تباہ ہونے کا نتیجہ تھا۔