---

Two objects of different masses falling freely near the surface of moon would

undergo a change in their inertiaexperience forces of same magnitudehave different accelerationshave same velocities at any instant

---

The value of acceleration due to gravity

increases from pole to equatoris least on equatoris least on polesis same on equator and poles

---

The gravitational force between two objects is F. If masses of both objects are halved without changing distance between them, then the gravitational force would become

2 FFF/2F/4

---

A boy is whirling a stone tied with a string in an horizontal circular path. If the string breaks, the stone

will move along a straight line perpendicular to the circular path away from the boywill move along a straight line tangential to the circular pathwill move along a straight line towards the center of the circular pathwill continue to move in the circular path

---

An object is put one by one in three liquids having different densities. The object floats with 1/9, 2/11 and 3/7 parts of their volumes outside the liquid surface in liquids of densities d₁, d₂ and d₃ respectively. Which of the following statement is correct?

d₁ < d₂ < d₃d₁ < d₂ > d₃d₁ > d₂ < d₃d₁ > d₂ > d₃

---

In the relation F = G M m/d², the quantity G

is universal constant of natureis greatest at the surface of the earthis used only when the earth is one of the two massesdepends on the value of g at the place of observation

---

Law of gravitation gives the gravitational force between

two charged bodies onlyany two bodies having some massthe earth and Sun onlythe earth and a point mass only

---

The value of quantity G in the law of gravitation

is independent of mass and radius of the earthdepends on both mass and radius of earthdepends on radius of earth onlydepends on mass of earth only

---

Two particles are placed at some distance. If the mass of each of the two particles is doubled, keeping the distance between them unchanged, the value of gravitational force between them will be

unchanged1/2 times4 times1/4 times

---

The atmosphere is held to the earth by

earth’s magnetic fieldcloudswindgravity

---

The force of attraction between two unit point masses separated by a unit distance is called

universal gravitational constantgravitational fieldacceleration due to gravitygravitational potential

---

The weight of an object at the centre of the earth of radius R is

1/R² times the weight at surface of the earthR times the weight at the surface of the earthinfinitezero

---

An object weighs 10 N in air. When immersed fully in water, it weighs only 8 N. The weight of the liquid displaced by the object will be

12 N10 N8 N2 N

---

A girl stands on a box having 60 cm length, 40 cm breadth and 20 cm width in three ways. In which of the following cases, pressure exerted by the brick will be

the same in all the above three casesmaximum when width and length form the basemaximum when breadth and width form the basemaximum when length and breadth form the base

---

An apple falls from a tree because of gravitational attraction between the earth and apple. If F₁ is the magnitude of force exerted by the earth on the apple and F₂ is the magnitude of force exerted by apple on earth, then

F₁ and F₂ are equalF₁ is only a little greater than F₂F₂ is very much greater than F₁F₁ is very much greater than F₂