Physics-
General
Easy
Question
Statement 1: In circular motion, the centripetal and centrifugal force acting in opposite direction balance each other
Statement 2: Centripetal and centrifugal forces don’t act at the same time
- Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
- Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
- Statement 1 is True, Statement 2 is False
- Statement 1 is False, Statement 2 is True
The correct answer is: Statement 1 is False, Statement 2 is True
While moving along a circle, the body has a constant tendency to regain its natural straight path
This tendency gives rise to a force called centrifugal force. The centrifugal force does not act on the body in motion, the only force acting on the body in motion is centripetal force. The centrifugal force acts on the source of centripetal force to displace it radially outward from the centre of the path
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Statement 1: Improper banking of roads causes wear and tear of tyres
Statement 2: The necessary centripetal force in that event is provided by the force of friction between the tyres and the road
Statement 1: Improper banking of roads causes wear and tear of tyres
Statement 2: The necessary centripetal force in that event is provided by the force of friction between the tyres and the road
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Statement 1: A safe turn by a cyclist should neither be fast nor sharp
Statement 2: As the bending of angle from the vertical would decrease
Statement 1: A safe turn by a cyclist should neither be fast nor sharp
Statement 2: As the bending of angle from the vertical would decrease
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Statement 1: If both the speed of a body and radius of its circular path are doubled, then centripetal force also gets doubled
Statement 2: Centripetal force is directly proportional to both speed of a body and radius of circular path
Statement 1: If both the speed of a body and radius of its circular path are doubled, then centripetal force also gets doubled
Statement 2: Centripetal force is directly proportional to both speed of a body and radius of circular path
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Statement 1: A football whether kicked at 
or 
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Statement 2: Air resistance is more for larger angle
Statement 1: A football whether kicked at or will strike the ground at the same place, although when kicked at , it will remain longer in the air
Statement 2: Air resistance is more for larger angle
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Statement 1: The resultant of three vectors 
and 
and 
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Statement 2: is along and () is along .
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Statement 1: When the velocity of projection of a body is made 
time, its time of flight becomes times
Statement 2: Range of projectile does not depend on the initial velocity of body
Statement 1: When the velocity of projection of a body is made time, its time of flight becomes times
Statement 2: Range of projectile does not depend on the initial velocity of body
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Statement 1: At the highest point of projectile motion given angular projection, the velocity is not zero
Statement 2: Only the vertical component of velocity is zero whereas horizontal component still exists
Statement 1: At the highest point of projectile motion given angular projection, the velocity is not zero
Statement 2: Only the vertical component of velocity is zero whereas horizontal component still exists
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Statement 1: The maximum horizontal range of projectile is proportional to square of velocity
Statement 2: The maximum horizontal range of projectile is equal to maximum height attained by projectile
Statement 1: The maximum horizontal range of projectile is proportional to square of velocity
Statement 2: The maximum horizontal range of projectile is equal to maximum height attained by projectile
Physics-General
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Statement 1: When range of a projectile is maximum, its angle of projection may be 
or 
Statement 2: Whether 
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Statement 1: When range of a projectile is maximum, its angle of projection may be or
Statement 2: Whether is or , value of range remains the same, only the sign changes
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Statement 1: As the frictional force increases, the safe velocity limit for taking a turn on an unbanked road also increases
Statement 2: Banking of roads will increases the value of limiting velocity
Statement 1: As the frictional force increases, the safe velocity limit for taking a turn on an unbanked road also increases
Statement 2: Banking of roads will increases the value of limiting velocity
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Statement 1: For looping a vertical loop of radius 
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Statement 1: A coin is placed on phonogram turn table. The motor is started, coin moves along the moving table
Statement 2: The rotating table is providing necessary centripetal force to the coin
Statement 1: A coin is placed on phonogram turn table. The motor is started, coin moves along the moving table
Statement 2: The rotating table is providing necessary centripetal force to the coin
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Statement 1: A safe turn by a cyclist should neither be fast nor sharp
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Statement 1: When a body is dropped or thrown horizontally from the same height, it would reach the ground at the same time
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Statement 2: Horizontal velocity has no effect on the vertical direction
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Statement 1: A physical quantity cannot be called as a vector if its magnitude is zero.
Statement 2: A vector has both, magnitude and direction.
Statement 1: A physical quantity cannot be called as a vector if its magnitude is zero.
Statement 2: A vector has both, magnitude and direction.
Physics-General
