NEET Test Series from KOTA - 10 Papers In MS WORD
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PHXI05:LAWS OF MOTION
363227
Assertion : Improper banking of roads causes wear and tear of tyres. Reason : The necessary centripetal force is provided by the force of friction between the tyres and the road.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
The reason correctly explain assertion stating that the necessary centripetal force is provided by the force of friction between the tires and the road. If the road is improperly banked, the friction may not be sufficient to provide the required centripetal force, leading to increased wear and tear on the tires. So correct option is (1).
PHXI05:LAWS OF MOTION
363228
Assertion : When an automobile while going too fast around a curve overturns, its inner wheels leave the ground first. Reason : For a safe turn the velocity of automobile should be less than the value of safe limit velocity.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Outer wheels have a longer distance to travel when going around the curve, which can cause the inner wheels to lift off the ground due to the centrifugal force acting on the vehicle. \(\Rightarrow\) Assertion is TRUE (correct) To safely navigate a curve, the velocity of the automobile should be within the limits defined by the safe limit velocity for that particular curve. \(\Rightarrow\) Reason is TRUE (correct) However, the reason does not directly explain assertion. So correct option is (2).
PHXI05:LAWS OF MOTION
363229
A ball of mass \(0.25\;kg\) attached to the ends of a string of length \(1.96\;m\) is rotating in a horizontal circle. The string will break, if tension is more than \(25 N\). What is the maximum velocity with which the ball can be rotated?
363230
Statement A : On a merry-go around, all parts of our body are subjected to an inward force. Statement B : We have feeling of being pushed outward in the direction of impending motion.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
In circular motion there is always an inward force (real force) acts on the body whereas the bodies feel outward force (pseudo force) or centrifugal force) on it. Both statements are true. So option (3) is correct.
363227
Assertion : Improper banking of roads causes wear and tear of tyres. Reason : The necessary centripetal force is provided by the force of friction between the tyres and the road.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
The reason correctly explain assertion stating that the necessary centripetal force is provided by the force of friction between the tires and the road. If the road is improperly banked, the friction may not be sufficient to provide the required centripetal force, leading to increased wear and tear on the tires. So correct option is (1).
PHXI05:LAWS OF MOTION
363228
Assertion : When an automobile while going too fast around a curve overturns, its inner wheels leave the ground first. Reason : For a safe turn the velocity of automobile should be less than the value of safe limit velocity.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Outer wheels have a longer distance to travel when going around the curve, which can cause the inner wheels to lift off the ground due to the centrifugal force acting on the vehicle. \(\Rightarrow\) Assertion is TRUE (correct) To safely navigate a curve, the velocity of the automobile should be within the limits defined by the safe limit velocity for that particular curve. \(\Rightarrow\) Reason is TRUE (correct) However, the reason does not directly explain assertion. So correct option is (2).
PHXI05:LAWS OF MOTION
363229
A ball of mass \(0.25\;kg\) attached to the ends of a string of length \(1.96\;m\) is rotating in a horizontal circle. The string will break, if tension is more than \(25 N\). What is the maximum velocity with which the ball can be rotated?
363230
Statement A : On a merry-go around, all parts of our body are subjected to an inward force. Statement B : We have feeling of being pushed outward in the direction of impending motion.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
In circular motion there is always an inward force (real force) acts on the body whereas the bodies feel outward force (pseudo force) or centrifugal force) on it. Both statements are true. So option (3) is correct.
363227
Assertion : Improper banking of roads causes wear and tear of tyres. Reason : The necessary centripetal force is provided by the force of friction between the tyres and the road.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
The reason correctly explain assertion stating that the necessary centripetal force is provided by the force of friction between the tires and the road. If the road is improperly banked, the friction may not be sufficient to provide the required centripetal force, leading to increased wear and tear on the tires. So correct option is (1).
PHXI05:LAWS OF MOTION
363228
Assertion : When an automobile while going too fast around a curve overturns, its inner wheels leave the ground first. Reason : For a safe turn the velocity of automobile should be less than the value of safe limit velocity.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Outer wheels have a longer distance to travel when going around the curve, which can cause the inner wheels to lift off the ground due to the centrifugal force acting on the vehicle. \(\Rightarrow\) Assertion is TRUE (correct) To safely navigate a curve, the velocity of the automobile should be within the limits defined by the safe limit velocity for that particular curve. \(\Rightarrow\) Reason is TRUE (correct) However, the reason does not directly explain assertion. So correct option is (2).
PHXI05:LAWS OF MOTION
363229
A ball of mass \(0.25\;kg\) attached to the ends of a string of length \(1.96\;m\) is rotating in a horizontal circle. The string will break, if tension is more than \(25 N\). What is the maximum velocity with which the ball can be rotated?
363230
Statement A : On a merry-go around, all parts of our body are subjected to an inward force. Statement B : We have feeling of being pushed outward in the direction of impending motion.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
In circular motion there is always an inward force (real force) acts on the body whereas the bodies feel outward force (pseudo force) or centrifugal force) on it. Both statements are true. So option (3) is correct.
363227
Assertion : Improper banking of roads causes wear and tear of tyres. Reason : The necessary centripetal force is provided by the force of friction between the tyres and the road.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
The reason correctly explain assertion stating that the necessary centripetal force is provided by the force of friction between the tires and the road. If the road is improperly banked, the friction may not be sufficient to provide the required centripetal force, leading to increased wear and tear on the tires. So correct option is (1).
PHXI05:LAWS OF MOTION
363228
Assertion : When an automobile while going too fast around a curve overturns, its inner wheels leave the ground first. Reason : For a safe turn the velocity of automobile should be less than the value of safe limit velocity.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Outer wheels have a longer distance to travel when going around the curve, which can cause the inner wheels to lift off the ground due to the centrifugal force acting on the vehicle. \(\Rightarrow\) Assertion is TRUE (correct) To safely navigate a curve, the velocity of the automobile should be within the limits defined by the safe limit velocity for that particular curve. \(\Rightarrow\) Reason is TRUE (correct) However, the reason does not directly explain assertion. So correct option is (2).
PHXI05:LAWS OF MOTION
363229
A ball of mass \(0.25\;kg\) attached to the ends of a string of length \(1.96\;m\) is rotating in a horizontal circle. The string will break, if tension is more than \(25 N\). What is the maximum velocity with which the ball can be rotated?
363230
Statement A : On a merry-go around, all parts of our body are subjected to an inward force. Statement B : We have feeling of being pushed outward in the direction of impending motion.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
In circular motion there is always an inward force (real force) acts on the body whereas the bodies feel outward force (pseudo force) or centrifugal force) on it. Both statements are true. So option (3) is correct.
