STATEMENT - 1 : Gas ejected from rocket will never exert thrust on the rocket if the ejected gas and the rocket move in the same direction. STATEMENT - 2 : To exert thrust on rocket in its direction of motion, the ejected gas (w.r.t. rocket) must move opposite to the velocity of rocket (w.r.t. ground).
Statement-1 is True, Statement-2 is True ;Statement-2 is a correct explanation for Statement-1.
Statement-1 is True, Statement-2 is True ;Statement-2 is NOT a correct explanation for Statement-1.
Statement-1 is True, Statement-2 is False.
Statement-1 is False, Statement-2 is True.
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 False.
C
Statement-1 is False, Statement-2 is True.
D
Statement-1 is True, Statement-2 is True ;Statement-2 is NOT a correct explanation for Statement-1.
Open in App
Solution
Verified by Toppr
Answer is D If the Gas ejected from rocket and the rocket move in the same direction, even than thrust will be exerted. Hence statement 1 is false. From Newton' third law, Ejected gas will exert thrust opposite to it. Hence statement 2 is true.
Was this answer helpful?
0
Similar Questions
Q1
STATEMENT - 1 : Gas ejected from rocket will never exert thrust on the rocket if the ejected gas and the rocket move in the same direction. STATEMENT - 2 : To exert thrust on rocket in its direction of motion, the ejected gas (w.r.t. rocket) must move opposite to the velocity of rocket (w.r.t. ground).
View Solution
Q2
Statement - 1 : RMS velocity of a gas sample can be expressed as Crms=√3PVM and Statement - 2 : The RMS velocity of a gas sample decreases if its volume is decreased.
View Solution
Q3
STATEMENT – 1: Compressibility factor for hydrogen varies with pressure having a positive slope at all pressures when at 273 K. STATEMENT – 2: Even at low pressures, repulsive forces dominate in hydrogen gas at 273 K.
View Solution
Q4
For every natural number n≥2, Statement 1: 1√1+1√2+...+1√n>√n Statement 2: √n(n+1)<n+1