हिंदी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान कक्षा ११

P Let V and E Represent the Gravitational Potential and Field at a Distance R from the Centre of a Uniform Solid Sphere. Consider the Two Statements:

Advertisements
Advertisements

प्रश्न

Let V and E represent the gravitational potential and field at a distance r from the centre of a uniform solid sphere. Consider the two statements:
(A) the plot of V against r is discontinuous.
(B) The plot of E against r is discontinuous.

विकल्प

  • Both A and B are correct.

  • A is correct but B is wrong.

  • B is correct but A is wrong.

  • Both A and B are wrong.

MCQ
Advertisements

उत्तर

Both A and B are wrong.

Both the plots (i.e., V against r and E against r) are continuous curves for a uniform solid sphere.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 11: Gravitation - MCQ [पृष्ठ २२४]

APPEARS IN

एचसी वर्मा Concepts of Physics Volume 1 and 2 [English]
अध्याय 11 Gravitation
MCQ | Q 8 | पृष्ठ २२४

संबंधित प्रश्न

What is the magnitude of the gravitational force between the earth and a 1 kg object on its surface? (Mass of the earth is 6 × 1024 kg and radius of the earth is 6.4 × 106 m).


Choose the correct alternative:

 Acceleration due to gravity increases/decreases with increasing altitude.


Choose the correct alternative:

Acceleration due to gravity is independent of mass of the earth/mass of the body.


Can we apply Newton’s third law to the gravitational force ? Explain your answer.


State two applications of universal law of gravitation.


Three equal masses m are placed at the three corners of an equilateral triangle of side a. Find the force exerted by this system on another particle of mass m placed at (a) the mid-point of a side, (b) at the centre of the triangle.


Two small bodies of masses 10 kg and 20 kg are kept a distance 1.0 m apart and released. Assuming that only mutual gravitational forces are acting, find the speeds of the particles when the separation decreases to 0.5 m.


A ball is thrown vertically upwards. It goes to a height 20 m and then returns to the ground. Taking acceleration due to gravity g to be 10 ms-2 , find : 
the final velocity of the ball on reaching the ground .


Who stated the law of gravitation?


How will the force of gravitation between two objects change if the distance between them is:
Doubled


All objects in the universe attract each other along the line joining their________.


What is meant by the equation :
`g= Gxxm/r^2`
where the symbols have their usual meanings.


Why does a ball moving on a table top eventually stops?


Explain the difference between g and G.


Solve the following problem.

Find the gravitational force between the Sun and the Earth.
Given Mass of the Sun = 1.99 × 1030 kg
Mass of the Earth = 5.98 × 1024 kg
The average distance between the Earth and the Sun = 1.5 × 1011 m.


Complete the chart below.

F(N) M1(kg) M2(kg) D(m)
(a) 50 84 02
16 × 109 1.63 × 1022 (b) 34

Four identical particles of equal masses 1 kg made to move along the circumference of a circle of radius 1 m under the action of their own mutual gravitational attraction. The speed of each particle will be ______.


If the mass of one object is doubled and distance remains the same, the gravitational force will ______.


If the distance between two objects is doubled, the gravitational force becomes ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×