# Assertion: When $$\theta=45$$° or 135°, the value of  R remains the same, only the sign changes. Reason: $$R={u^2 sin \theta \over g}$$ 1. Both assertion and reason are true and the reason is the correct explanation of the assertion. 2. Both assertion and reason are true but the reason is not the correct explanation of the assertion. 3. Assertion is true but the reason is false. 4. Both assertion and reason are false.

Subtopic:  Projectile Motion |
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Select the correct option based on statements below:
 Assertion: Linear momentum of a body changes even when it is moving uniformly in a circle. Reason: In uniform circular motion, velocity remains constant.

 1 Both assertion and reason are true and the reason is the correct explanation of the assertion. 2 Both assertion and reason are true but the reason is not the correct explanation of the assertion. 3 Assertion is true but the reason is false. 4 Both assertion and reason are false.
Subtopic:  Circular Motion |
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Assertion: When a body is dropped or thrown horizontally from the same height, it would reach the ground at the same time.
Reason: Horizontal velocity has no effect on the vertical direction.
1. Both the assertion and reason are true and reason explains the assertion.
2. Both the assertion and reason are true but reason does not explain the assertion.
3. Assertion is true but reason is false.
4. Assertion is false but reason is true.
Subtopic:  Projectile Motion |
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Assertion: Two similar trains are moving along the equator at the same speed but in opposite direction. They will exert equal pressure on the rails.
Reason: In uniform circular motion the magnitude of acceleration remains constant but the direction continuously changes.
1. Both the assertion and reason are true and reason explains the assertion.
2. Both the assertion and reason are true but reason does not explain the assertion.
3. Assertion is true but reason is false.
4. Assertion is false but reason is true.

Subtopic:  Circular Motion |
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Assertion: A projectile has only vertical component of velocity at the highest point of its trajectory.
Reason: At the highest point, only one component of velocity is present.
1. Both the assertion and reason are true and reason explains the assertion.
2. Both the assertion and reason are true but reason does not explain the assertion.
3. Assertion is true but reason is false.
4. Assertion is false but reason is true.

Subtopic:  Projectile Motion |
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Assertion: Generally, the path of a projectile from the earth is parabolic but it is elliptical for projectiles going to a very large height.
Reason: The path of a projectile is independent of the gravitational force of the earth.
1. Both assertion & reason are true and the reason is the correct explanation of the assertion
2. Both assertion & reason are true but the reason is not the correct explanation of the assertion
3. Assertion is true but reason is false.
4. Both assertion and reason are false statements.

Subtopic:  Projectile Motion |
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Assertion: A particle is projected at an angle $$\theta$$ (<90°) to horizontal, with a velocity u. When particle strikes the ground, its speed is again u.
Reason: Velocity along horizontal direction remains the same but velocity along vertical direction is changed. When a particle strikes the ground, the magnitude of final vertical velocity is equal to the magnitude of the initial vertical velocity.
1. Both assertion & reason are true and the reason is the correct explanation of the assertion
2. Both assertion & reason are true but the reason is not the correct explanation of the assertion
3. Assertion is true but reason is false.
4. Both assertion and reason are false statements.

Subtopic:  Projectile Motion |
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Assertion: The relative velocity between any two bodies may be equal to the sum of the speeds of the two bodies.
Reason: Sometimes, the relative velocity between two bodies may be equal to the difference in the speeds of the two.

1. Both assertion & reason are true and the reason is the correct explanation of the assertion
2. Both assertion & reason are true but the reason is not the correct explanation of the assertion
3. Assertion is true but reason is false.
4. Both assertion and reason are false statements.

Subtopic:  Relative Motion |
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Given below are two statements:
 Assertion (A): For a given initial and final position the average velocity is single-valued while the average speed can have many values. Reason (R): Velocity is a vector quantity and speed is a scalar quantity.

 1 Both (A) and (R) are true and (R) is the correct explanation of (A). 2 Both (A) and (R) are true but (R) is not the correct explanation of (A). 3 (A) is true but (R) is false. 4 Both (A) and (R) are false.
Subtopic:  Position & Displacement |
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Assertion: For angular projection, when angle of projection $$\theta$$=tan-1(1), the horizontal range is four times of the maximum height.
Reason: The horizontal range of projectile is directly proportional to the square of velocity and inversely proportional to acceleration due to gravity.

1. Both assertion & reason are true and the reason is the correct explanation of the assertion
2. Both assertion & reason are true but the reason is not the correct explanation of the assertion
3. Assertion is true but reason is false.
4. Both assertion and reason are false statements.

Subtopic:  Projectile Motion |
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