Explanation

• Short-sightedness is called Myopia.
• It is corrected by a concave lens.
• This lens is thin in the center and thick at edges.
• It helps light focus on the retina correctly.
• Without correction, distant objects look blurred.

Additional information:

• Long-sightedness is called Hypermetropia.
• It is corrected by a convex lens.
• This lens is thick in the center and thin at edges.
• It helps light focus on the retina properly.
• Without correction, near objects look blurred.

Last verified on 07-06-2026

Explanation

• Sunlight travels at the speed of light (~3 × 10⁸ m/s).
• Takes 8 minutes 20 seconds on average to reach Earth.
• Sunlight takes approximately 499 seconds to travel from the Sun to Earth.
• Distance traveled: 150 million km from Sun to Earth.
• Moonlight takes only 1.3 seconds to reach Earth.

Last verified on 13-03-2026

Explanation

The K orbit, also known as the first electron shell.

• It can hold a maximum of 2 electrons.

The L orbit, also known as the second electron shell.

• It can hold a maximum of 8 electrons.

The M orbit, also known as the third electron shell.

• It can hold a maximum of 18 electrons.

Last verified on 19-03-2026

Explanation

حروف عطف وہ الفاظ ہوتے ہیں جو دو یا دو سے زیادہ الفاظ یا جملوں کو آپس میں ملاتے ہیں۔

جیسے: اور، لیکن، یا، بلکہ وغیرہ۔

Explanation

1 kilocalorie (kcal) = 4184 joules, commonly used in food energy.

1 calorie (cal) = 4.184 joules, so 1000 cal = 4184 J.

Explanation

• When an object reflects all the component colors of light, it appears white.
• This is because the object is reflecting all the wavelengths of visible light, which are then perceived by our eyes as white.
• If an object absorbs all seven colors of light (i.e., all the wavelengths of visible light), it appears black.

Explanation

A portfolio is typically used by artists to store and organize unframed artwork such as drawings, sketches, or paintings.

It helps in protecting the artwork from damage while making it easy to showcase or carry when needed.

Explanation

"That" is used to point out a specific noun (blue car), making it a demonstrative adjective.

Indefinite adjectives (e.g., some, many) do not specify a particular noun.

Explanation

The poem "In Spite of War" was written by Angela Morgan, an American poet.

It highlights hope, beauty, and resilience even during times of war.

Explanation

حسین کا ہم قافیہ لفظ "جبین" ہے، جو کہ دونوں الفاظ ایک ہی آواز کے ساتھ ختم ہوتے ہیں۔

جبین کا مطلب پیشانی یا ماتھا ہوتا ہے۔