MCQs

Explanation
Step 1: Recall the definition of set difference The set difference A - B is the set of elements that are in A but not in B. Step 2: Calculate A - A A = {1,2,3,4} A - A = {} (since every element in A is also in A, the difference is the empty set )

Explanation
The distributive law for sets states that A ∪ (B ∩ C) = (A ∪ B) ∩ (A ∪ C).

Explanation
The Hijrah (Migration to Medina) took place in 622 CE . It is marking the beginning of the Islamic calendar .
Prophet Muhammad (PBUH) and his followers migrated from Makkah to Medina . Due to persecution , establishing the first Islamic state.

Explanation
ک لام کا مطلب ہ ے گفتگو کرنا، چونکہ ح ضرت موسیؑ اللہ تعالی سے کوہ طور پر کلام کیا کرتے تھے اسی وجہ انہیں کلیم اللہ بھی کہا جاتا ہے۔ Bibi Safoora  the wife of  (Prophet Moosa)  was the  daughter  of Prophet:   Hazrat Shoaib A.S Hazrat Musa  also known as  Kaleemullah  was one of  124,000  prophets of God. Moses, also known as  Moshe Rabbenu Hazrat Musa  was granted  9 miracles Hazrat Musa (A.S)  met with  Holy Prophet ﷺ  on the  6 heavens .   ND7-5-2023

Explanation
The New Testament is the  second half of the Christian Bible. Christians consider the Old Testament  (or Hebrew Bible/Jewish Scriptures) The New Testament is the  sacred canon of Scripture. Hebrew Bible,  old testament , series of writings that become first compiled and preserved as the sacred books of the Jewish people. additionally known as Hebrew Scriptures, The old testament is 1st division of the C hristian biblical canon , that is based totally often upon the 24 books of the Hebrew Bible Tanakh, a set of ancient religious Hebrew writings by the Israelites .

Explanation
A Newton (N) is the unit of force in the International System of Units (SI). Force (F) is equal to mass (m) times acceleration (a): F = ma. " That gives a 1 kg body an acceleration of 1 m/s² ". Using F = ma, if m = 1 kg and a = 1 m/s², then F = 1 kg × 1 m/s² = 1 N.

Explanation
Ball falls 20m, so time taken is found using: s = 1/2 gt² 20 = 1/2 × 10 × t² t = 2s Vertical velocity when it hits the ground: v_y = gt = 10 × 2 = 20 m/s Since it hits at 45°, v_x = v_y = 20 m/s

Explanation
Step 1: Parallel Combination C_parallel = C + C = 2C Step 2: Series with Third Capacitor 1/C_eq = 1/2C + 1/C = (1/2C) + (2/2C) = 3/2C C_eq = 2C/3

Explanation
Impossible Situation : Constant velocity requires zero acceleration (Newton’s First Law). Variable acceleration would imply a changing net force , which must alter velocity (contradicting " constant velocity "). Possible Situations : Zero velocity, non-zero acceleration : Example: A ball at the top of its vertical toss (v=0, a=9.8 m/s² downward). Velocity east, acceleration west : Example: A car moving east while braking (deceleration acts west). Velocity east, acceleration east : Example: A car speeding up in the east direction.

Explanation
When blue litmus paper is dipped in an acid, it turns red. This is because the acid changes the color of the litmus paper from blue to red. Note : When red litmus paper is dipped in a base, it turns blue.

Explanation
Ionization energy (potential) is measured in: Electron volts (eV) (for single atoms). Kilojoules per mole (kJ/mol) (for molar quantities).

Explanation
Water is called the " universal solvent ". Because it dissolves more substances (e.g., salts, sugars, acids) than any other liquid due to its polarity (uneven charge distribution).

Explanation
The Hijrah (Migration to Medina) took place in 622 CE . It is marking the beginning of the Islamic calendar .
Prophet Muhammad (PBUH) and his followers migrated from Makkah to Medina . Due to persecution , establishing the first Islamic state.

Explanation
ک لام کا مطلب ہ ے گفتگو کرنا، چونکہ ح ضرت موسیؑ اللہ تعالی سے کوہ طور پر کلام کیا کرتے تھے اسی وجہ انہیں کلیم اللہ بھی کہا جاتا ہے۔ Bibi Safoora  the wife of  (Prophet Moosa)  was the  daughter  of Prophet:   Hazrat Shoaib A.S Hazrat Musa  also known as  Kaleemullah  was one of  124,000  prophets of God. Moses, also known as  Moshe Rabbenu Hazrat Musa  was granted  9 miracles Hazrat Musa (A.S)  met with  Holy Prophet ﷺ  on the  6 heavens .   ND7-5-2023

Explanation
The New Testament is the  second half of the Christian Bible. Christians consider the Old Testament  (or Hebrew Bible/Jewish Scriptures) The New Testament is the  sacred canon of Scripture. Hebrew Bible,  old testament , series of writings that become first compiled and preserved as the sacred books of the Jewish people. additionally known as Hebrew Scriptures, The old testament is 1st division of the C hristian biblical canon , that is based totally often upon the 24 books of the Hebrew Bible Tanakh, a set of ancient religious Hebrew writings by the Israelites .

Explanation
A Newton (N) is the unit of force in the International System of Units (SI). Force (F) is equal to mass (m) times acceleration (a): F = ma. " That gives a 1 kg body an acceleration of 1 m/s² ". Using F = ma, if m = 1 kg and a = 1 m/s², then F = 1 kg × 1 m/s² = 1 N.

Explanation
Ball falls 20m, so time taken is found using: s = 1/2 gt² 20 = 1/2 × 10 × t² t = 2s Vertical velocity when it hits the ground: v_y = gt = 10 × 2 = 20 m/s Since it hits at 45°, v_x = v_y = 20 m/s

Explanation
Step 1: Parallel Combination C_parallel = C + C = 2C Step 2: Series with Third Capacitor 1/C_eq = 1/2C + 1/C = (1/2C) + (2/2C) = 3/2C C_eq = 2C/3

Explanation
Impossible Situation : Constant velocity requires zero acceleration (Newton’s First Law). Variable acceleration would imply a changing net force , which must alter velocity (contradicting " constant velocity "). Possible Situations : Zero velocity, non-zero acceleration : Example: A ball at the top of its vertical toss (v=0, a=9.8 m/s² downward). Velocity east, acceleration west : Example: A car moving east while braking (deceleration acts west). Velocity east, acceleration east : Example: A car speeding up in the east direction.

Explanation
When blue litmus paper is dipped in an acid, it turns red. This is because the acid changes the color of the litmus paper from blue to red. Note : When red litmus paper is dipped in a base, it turns blue.

Explanation
Ionization energy (potential) is measured in: Electron volts (eV) (for single atoms). Kilojoules per mole (kJ/mol) (for molar quantities).

Explanation
Water is called the " universal solvent ". Because it dissolves more substances (e.g., salts, sugars, acids) than any other liquid due to its polarity (uneven charge distribution).

Explanation
The Hijrah (Migration to Medina) took place in 622 CE . It is marking the beginning of the Islamic calendar .
Prophet Muhammad (PBUH) and his followers migrated from Makkah to Medina . Due to persecution , establishing the first Islamic state.

Explanation
ک لام کا مطلب ہ ے گفتگو کرنا، چونکہ ح ضرت موسیؑ اللہ تعالی سے کوہ طور پر کلام کیا کرتے تھے اسی وجہ انہیں کلیم اللہ بھی کہا جاتا ہے۔ Bibi Safoora  the wife of  (Prophet Moosa)  was the  daughter  of Prophet:   Hazrat Shoaib A.S Hazrat Musa  also known as  Kaleemullah  was one of  124,000  prophets of God. Moses, also known as  Moshe Rabbenu Hazrat Musa  was granted  9 miracles Hazrat Musa (A.S)  met with  Holy Prophet ﷺ  on the  6 heavens .   ND7-5-2023

Explanation
The New Testament is the  second half of the Christian Bible. Christians consider the Old Testament  (or Hebrew Bible/Jewish Scriptures) The New Testament is the  sacred canon of Scripture. Hebrew Bible,  old testament , series of writings that become first compiled and preserved as the sacred books of the Jewish people. additionally known as Hebrew Scriptures, The old testament is 1st division of the C hristian biblical canon , that is based totally often upon the 24 books of the Hebrew Bible Tanakh, a set of ancient religious Hebrew writings by the Israelites .

Explanation
A Newton (N) is the unit of force in the International System of Units (SI). Force (F) is equal to mass (m) times acceleration (a): F = ma. " That gives a 1 kg body an acceleration of 1 m/s² ". Using F = ma, if m = 1 kg and a = 1 m/s², then F = 1 kg × 1 m/s² = 1 N.

Explanation
Ball falls 20m, so time taken is found using: s = 1/2 gt² 20 = 1/2 × 10 × t² t = 2s Vertical velocity when it hits the ground: v_y = gt = 10 × 2 = 20 m/s Since it hits at 45°, v_x = v_y = 20 m/s

Explanation
Step 1: Parallel Combination C_parallel = C + C = 2C Step 2: Series with Third Capacitor 1/C_eq = 1/2C + 1/C = (1/2C) + (2/2C) = 3/2C C_eq = 2C/3

Explanation
Impossible Situation : Constant velocity requires zero acceleration (Newton’s First Law). Variable acceleration would imply a changing net force , which must alter velocity (contradicting " constant velocity "). Possible Situations : Zero velocity, non-zero acceleration : Example: A ball at the top of its vertical toss (v=0, a=9.8 m/s² downward). Velocity east, acceleration west : Example: A car moving east while braking (deceleration acts west). Velocity east, acceleration east : Example: A car speeding up in the east direction.

Explanation
When blue litmus paper is dipped in an acid, it turns red. This is because the acid changes the color of the litmus paper from blue to red. Note : When red litmus paper is dipped in a base, it turns blue.

Explanation
Ionization energy (potential) is measured in: Electron volts (eV) (for single atoms). Kilojoules per mole (kJ/mol) (for molar quantities).

Explanation
Water is called the " universal solvent ". Because it dissolves more substances (e.g., salts, sugars, acids) than any other liquid due to its polarity (uneven charge distribution).

Explanation
The Hijrah (Migration to Medina) took place in 622 CE . It is marking the beginning of the Islamic calendar .
Prophet Muhammad (PBUH) and his followers migrated from Makkah to Medina . Due to persecution , establishing the first Islamic state.

Explanation
ک لام کا مطلب ہ ے گفتگو کرنا، چونکہ ح ضرت موسیؑ اللہ تعالی سے کوہ طور پر کلام کیا کرتے تھے اسی وجہ انہیں کلیم اللہ بھی کہا جاتا ہے۔ Bibi Safoora  the wife of  (Prophet Moosa)  was the  daughter  of Prophet:   Hazrat Shoaib A.S Hazrat Musa  also known as  Kaleemullah  was one of  124,000  prophets of God. Moses, also known as  Moshe Rabbenu Hazrat Musa  was granted  9 miracles Hazrat Musa (A.S)  met with  Holy Prophet ﷺ  on the  6 heavens .   ND7-5-2023

Explanation
The New Testament is the  second half of the Christian Bible. Christians consider the Old Testament  (or Hebrew Bible/Jewish Scriptures) The New Testament is the  sacred canon of Scripture. Hebrew Bible,  old testament , series of writings that become first compiled and preserved as the sacred books of the Jewish people. additionally known as Hebrew Scriptures, The old testament is 1st division of the C hristian biblical canon , that is based totally often upon the 24 books of the Hebrew Bible Tanakh, a set of ancient religious Hebrew writings by the Israelites .

Explanation
A Newton (N) is the unit of force in the International System of Units (SI). Force (F) is equal to mass (m) times acceleration (a): F = ma. " That gives a 1 kg body an acceleration of 1 m/s² ". Using F = ma, if m = 1 kg and a = 1 m/s², then F = 1 kg × 1 m/s² = 1 N.

Explanation
Ball falls 20m, so time taken is found using: s = 1/2 gt² 20 = 1/2 × 10 × t² t = 2s Vertical velocity when it hits the ground: v_y = gt = 10 × 2 = 20 m/s Since it hits at 45°, v_x = v_y = 20 m/s

Explanation
Step 1: Parallel Combination C_parallel = C + C = 2C Step 2: Series with Third Capacitor 1/C_eq = 1/2C + 1/C = (1/2C) + (2/2C) = 3/2C C_eq = 2C/3

Explanation
Impossible Situation : Constant velocity requires zero acceleration (Newton’s First Law). Variable acceleration would imply a changing net force , which must alter velocity (contradicting " constant velocity "). Possible Situations : Zero velocity, non-zero acceleration : Example: A ball at the top of its vertical toss (v=0, a=9.8 m/s² downward). Velocity east, acceleration west : Example: A car moving east while braking (deceleration acts west). Velocity east, acceleration east : Example: A car speeding up in the east direction.

Explanation
When blue litmus paper is dipped in an acid, it turns red. This is because the acid changes the color of the litmus paper from blue to red. Note : When red litmus paper is dipped in a base, it turns blue.

Explanation
Ionization energy (potential) is measured in: Electron volts (eV) (for single atoms). Kilojoules per mole (kJ/mol) (for molar quantities).

Explanation
Water is called the " universal solvent ". Because it dissolves more substances (e.g., salts, sugars, acids) than any other liquid due to its polarity (uneven charge distribution).

Explanation
The Hijrah (Migration to Medina) took place in 622 CE . It is marking the beginning of the Islamic calendar .
Prophet Muhammad (PBUH) and his followers migrated from Makkah to Medina . Due to persecution , establishing the first Islamic state.

Explanation
ک لام کا مطلب ہ ے گفتگو کرنا، چونکہ ح ضرت موسیؑ اللہ تعالی سے کوہ طور پر کلام کیا کرتے تھے اسی وجہ انہیں کلیم اللہ بھی کہا جاتا ہے۔ Bibi Safoora  the wife of  (Prophet Moosa)  was the  daughter  of Prophet:   Hazrat Shoaib A.S Hazrat Musa  also known as  Kaleemullah  was one of  124,000  prophets of God. Moses, also known as  Moshe Rabbenu Hazrat Musa  was granted  9 miracles Hazrat Musa (A.S)  met with  Holy Prophet ﷺ  on the  6 heavens .   ND7-5-2023

Explanation
The New Testament is the  second half of the Christian Bible. Christians consider the Old Testament  (or Hebrew Bible/Jewish Scriptures) The New Testament is the  sacred canon of Scripture. Hebrew Bible,  old testament , series of writings that become first compiled and preserved as the sacred books of the Jewish people. additionally known as Hebrew Scriptures, The old testament is 1st division of the C hristian biblical canon , that is based totally often upon the 24 books of the Hebrew Bible Tanakh, a set of ancient religious Hebrew writings by the Israelites .

Explanation
A Newton (N) is the unit of force in the International System of Units (SI). Force (F) is equal to mass (m) times acceleration (a): F = ma. " That gives a 1 kg body an acceleration of 1 m/s² ". Using F = ma, if m = 1 kg and a = 1 m/s², then F = 1 kg × 1 m/s² = 1 N.