Gravitation (NEET Physics): Questions 38 - 42 of 82

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2098 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 550.00 or

Question number: 38

» Gravitation » Universal Law of Gravitation

MCQ▾

Question

Gravitational mass is proportional to,

Choices

Choice (4) Response

a.

Gravitational field

b.

Gravitational force

c.

Gravitational intensity

d.

Question does not provide sufficient data or is vague

Question number: 39

» Gravitation » Geo-Stationary Satellites

MCQ▾

Question

If the moon revolves round the earth 10 times in one year. If the ratio of sun-earth distance to earth-moon distance is 393, then the ratio of masses of sun and earth will be –

Choices

Choice (4) Response

a.

6.07 ⨯ 10 5

b.

4.56 ⨯ 10 5

c.

1

d.

5.93 ⨯ 10 5

Question number: 40

» Gravitation » Gravitational Potential

MCQ▾

Question

Two satellites S 1 and S 2 revolve round a planet in the same direction in circular orbits. Their periods of revolutions are 1 hour and 8 hour respectively. The radius of S 1 is 10 4 km. The velocity of S 2 with respect to S 1 will be

Choices

Choice (4) Response

a.

π3104kmhr

b.

π2104kmhr

c.

π104kmhr

d.

2π104kmhr

Question number: 41

» Gravitation » Kepler's Laws of Planetary Motion

MCQ▾

Question

The semi-major axes of the orbits of mercury and mars are respectively 0.387 and 1.524 in astronomical unit. If the period of Mercury is 0.241 year, what is the period of Mars?

Choices

Choice (4) Response

a.

3.9 years

b.

1.9 years

c.

1.2 years

d.

3.2 years

Question number: 42

» Gravitation » Escape Velocity

MCQ▾

Question

Ve and Vp denotes the escape velocity from the earth and another planet having twice the radius and the same mean density as the earth. Then which of the following is (are) wrong?

(1) Ve=Vp

(2) Ve=2Vp

(3) Ve=Vp4

(4) Ve=Vp2

Select the correct answers with mark it according to the following codes:

Choices

Choice (4) Response

a.

1.2 and 3 are correct

b.

1 and 4 are correct

c.

1 and 3 are correct

d.

1 and 2 are correct

f Page
Sign In