Latest IIT-JEE Aptitude Question SOLUTION: STATEMENT-1 In an elastic collision between two bodies, the relative speed of the bodies after collision is equal to the relative speed before the collision. because STATEMENT-2 In

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Previous Question: STATEMENT-1 A block of mass m starts moving on a rough horizontal surface with a velocity v. It stops due to friction between the block and the surface after moving through a certain distance. The surface is now tilted to an angle of 300 with the horizontal and the same block is made to go up on the surface with the same initial velocity v. The decrease in the mechanical energy in the second situation is smaller than that in the first situation. because STATEMENT-2 The coefficient of friction between the block and the surface decreases with the increase in the angle of inclination. (A) Statement -1 is True, Statement-2 is True; Statement-2 is a correct explanation for statement-1. (B) Statement -1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for statement-1. (C) Statement -1 is True, Statement-2 is False. (D) Statement -1 is False, Statement-2 is True Next Question: The piston is taken completely out of the cylinder. The hole at the top is sealed. A water tank is brought below the cylinder and put in a position so that the water surface in the tank is at the same level as the top of the cylinder as shown in the figure. The density of the water is ρ. In equilibrium, the height H of the water column in the cylinder satisfies (A) ρg(L0−H)2 + P0(L0 − H) + L0P0 = 0 (B) ρg(L0−H)2 − P0(L0 − H) − L0P0 = 0 (C) ρg(L0−H)2 + P0(L0 − H) − L0P0 = 0 (D) ρg(L0−H)2 − P0(L0 − H) + L0P0 = 0

(#M40028079) IIT-JEE question Mental Ability Keep an EYE

STATEMENT-1
In an elastic collision between two bodies, the relative speed of the bodies after collision is equal to the relative speed
before the collision.
because
STATEMENT-2
In an elastic collision, the linear momentum of the system is conserved.
(A) Statement -1 is True, Statement-2 is True; Statement -2 is a correct explanation for Statement-1.
(B) Statement -1 is True, Statement-2 is True; Statement -2 is NOT a correct explanation for Statement-1.
(C) Statement -1 is True, Statement-2 is False.
(D) Statement -1 is False, Statement-2 is True.: Asked In IIT-JEE MAN (11 years ago); Unsolved; Is this Puzzle helpful? (0) (1) Submit Your Solution

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Previous Question: STATEMENT-1 A block of mass m starts moving on a rough horizontal surface with a velocity v. It stops due to friction between the block and the surface after moving through a certain distance. The surface is now tilted to an angle of 300 with the horizontal and the same block is made to go up on the surface with the same initial velocity v. The decrease in the mechanical energy in the second situation is smaller than that in the first situation. because STATEMENT-2 The coefficient of friction between the block and the surface decreases with the increase in the angle of inclination. (A) Statement -1 is True, Statement-2 is True; Statement-2 is a correct explanation for statement-1. (B) Statement -1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for statement-1. (C) Statement -1 is True, Statement-2 is False. (D) Statement -1 is False, Statement-2 is True Next Question: The piston is taken completely out of the cylinder. The hole at the top is sealed. A water tank is brought below the cylinder and put in a position so that the water surface in the tank is at the same level as the top of the cylinder as shown in the figure. The density of the water is ρ. In equilibrium, the height H of the water column in the cylinder satisfies (A) ρg(L0−H)2 + P0(L0 − H) + L0P0 = 0 (B) ρg(L0−H)2 − P0(L0 − H) − L0P0 = 0 (C) ρg(L0−H)2 + P0(L0 − H) − L0P0 = 0 (D) ρg(L0−H)2 − P0(L0 − H) + L0P0 = 0

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