3481: A person sitting in a bus experiences a jerk, when the bus stops all of a sudden. This is due to:
(a) Law of inertia
(b) Newton's third law of motion
(c) Einstein's law of relativity
(d) None of these
3482: Due to their extensive rice cultivation, some regions may be contributing to global warming. To what possible reason/reasons is this attributable ?
1. The anaerobic conditions associated with rice cultivation cause the emission of methane.
2. When nitrogen based fertilizers are used, nitrous oxide, is emitted from the cultivated soil.
Which of the statements given above is/are correct ?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
3483: Who of the following scientists proved that the stars with mass less than 1.44 times the mass of the Sun end up as White Dwarfs when they die?
(a) Edwin Hubble
(b) S. Chandrashekhar
(c) Steven Weinberg
(d) Stephen Hawking
3484: Assertion (A) :
The Quit India Movement of 1942 marked the culmination of the Indian Freedom Movement.
Reason (R):
After the Quit India Movement it was only a question of time and determining the actual mechanics of the transfer of power.
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not an explanation of A
(c) A is true but R is false
(d) A is false but R is true
3485: Two numbers X and Y are respectively 20% and 28% less than a third number Z. By what percentage is the number Y less than the number X ?
(A) 8%
(B) 9%
(C) 10%
(D) 12%