Practice Gravitation RRB PYQ questions from Railway examinations, including RRB NTPC PYQ, RRB Group D PYQ, RRB JE PYQ, RRB ALP PYQ and RRB Technician PYQ. This topic-wise question set covers important concepts of gravitation that are useful for RRB Physics preparation.
The questions cover important concepts such as Newton’s law of gravitation, gravitational force, acceleration due to gravity, variation of gravity, mass and weight, gravity and motion under gravity, satellite motion, escape velocity and related numerical and conceptual questions.
Gravitation RRB PYQ questions are useful for candidates preparing for Gravitation RRB NTPC PYQ, Gravitation RRB Group D PYQ, Gravitation RRB JE PYQ, Gravitation RRB ALP PYQ and Gravitation RRB Technician PYQ. Solve the questions, check the solutions, and strengthen your understanding of important concepts frequently relevant to Railway exams.
Start practicing Gravitation RRB PYQs and improve your Physics preparation for upcoming Railway examinations.
41
In F = GMm/d², what does G represent?
RRB Group-D
05/11/2018 / Shift III
2018
✓ Answer:AUniversal gravitational constant
G is the universal gravitational constant.
42
An object is dropped from rest. What is its velocity after 15 s? Take g = 9.8 m/s².
RRB JE (Stage-II)
22/04/2025 / Shift II
2025
✓ Answer:C147 m/s
v = u + gt = 0 + 9.8 × 15 = 147 m/s downward, neglecting air resistance.
43
If a stone is thrown upward, what sign is assigned to gravitational acceleration when upward is positive?
RRB Technicians Grade-III
28/12/2024 / Shift III
2024
✓ Answer:BNegative
With upward chosen positive, gravity acts downward, so a = -g. The sign depends on the coordinate convention.
44
If gravitational force varies inversely as the nth power of distance, the period of a planet in a circular orbit of radius R is proportional to:
RRB Group-D
15/11/2018 / Shift I
2018
✓ Answer:CR^((n+1)/2)
For circular motion, m4π²R/T² ∝ R⁻ⁿ, so T² ∝ Rⁿ⁺¹ and T ∝ R^((n+1)/2).
45
Which force produces the acceleration of an object falling towards Earth?
RRB Technicians Grade-III
28/12/2024 / Shift I
2024
✓ Answer:CEarth's gravitational force
Earth's gravitational attraction produces acceleration towards its centre.
46
What happens to a massive object falling freely downward under Earth's gravity?
RRB ALP (Stage-I)
25/11/2024 / Shift II
2024
✓ Answer:AIts velocity increases
Its downward speed increases because gravity accelerates it downward, neglecting air resistance.
47
Which statements are incorrect? A. G has the same value on the Moon and Earth. B. Two 2 kg masses separated by 1 m attract with a force of 26.68 × 10⁻¹¹ N. C. Newton's law of gravitation is valid only in the laboratory. D. Force is inversely proportional to the square of separation.
RRB ALP & Technician
31/08/2018 / Shift III
2018
✓ Answer:COnly C
Newton's law is not restricted to laboratories. A, B and D agree with F = Gm₁m₂/r².
48
An object is dropped from a height of 50 m. What is its initial speed?
RRB Technicians Grade-III
23/12/2024 / Shift III
2024
✓ Answer:A0
Dropped means released from rest, so the initial speed is zero.
49
Earth's gravitational acceleration is six times the Moon's. Which statement is correct?
RRB ALP (Stage-I)
25/11/2024 / Shift III
2024
✓ Answer:AAn object's weight on Earth is six times its weight on the Moon
W = mg; with mass unchanged, weight is proportional to local g.
50
If the separation between two particles increases, their gravitational attraction:
RRB Group-D
12/11/2018 / Shift III
2018
✓ Answer:BDecreases
At fixed masses, gravitational force decreases as 1/r².
Showing 41 – 50 of 162 MCQ Questions | Page 5 of 17
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