KEPLER'S LAWS
Gravitation

270386 If the earth is at one-fourth of its present distance from the sun, the duration of the year would be

1 half the present year
2 one-eighth the present year
3 one-fourth the present year
4 one -sixteenth the present year
Gravitation

270387 The radius vector drawn from the sun to a planet sweeps out areas in equal time

1 equal
2 unequal
3 greater
4 less
Gravitation

270388 If the area swept by the line joining the sun and the earth from Feb 1 to Feb 7 is ' \(A\) ', then the area swept by the radius vector from Feb 8 to Feb 28 is

1 \(A\)
2 \(2 \mathrm{~A}\)
3 \(3 \mathrm{~A}\)
4 \(4 \mathrm{~A}\)
Gravitation

270389 The motion of a planet around sun in an elliptical orbit is shown in the following figure. Sun is situated at one focus. The shaded areas are equal. If the planet takes time ' \(t_{1}\) ' and ' \(t_{2}\) ' in moving from \(\mathbf{A}\) to \(\mathrm{B}\) and from \(\mathbf{C}\) to \(\mathbf{D}\) respectively, then

1 radial acceleration is zero
2 tangential acceleration is zero
3 transverse acceleration is zero
4 All
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Gravitation

270386 If the earth is at one-fourth of its present distance from the sun, the duration of the year would be

1 half the present year
2 one-eighth the present year
3 one-fourth the present year
4 one -sixteenth the present year
Gravitation

270387 The radius vector drawn from the sun to a planet sweeps out areas in equal time

1 equal
2 unequal
3 greater
4 less
Gravitation

270388 If the area swept by the line joining the sun and the earth from Feb 1 to Feb 7 is ' \(A\) ', then the area swept by the radius vector from Feb 8 to Feb 28 is

1 \(A\)
2 \(2 \mathrm{~A}\)
3 \(3 \mathrm{~A}\)
4 \(4 \mathrm{~A}\)
Gravitation

270389 The motion of a planet around sun in an elliptical orbit is shown in the following figure. Sun is situated at one focus. The shaded areas are equal. If the planet takes time ' \(t_{1}\) ' and ' \(t_{2}\) ' in moving from \(\mathbf{A}\) to \(\mathrm{B}\) and from \(\mathbf{C}\) to \(\mathbf{D}\) respectively, then

1 radial acceleration is zero
2 tangential acceleration is zero
3 transverse acceleration is zero
4 All
Gravitation

270386 If the earth is at one-fourth of its present distance from the sun, the duration of the year would be

1 half the present year
2 one-eighth the present year
3 one-fourth the present year
4 one -sixteenth the present year
Gravitation

270387 The radius vector drawn from the sun to a planet sweeps out areas in equal time

1 equal
2 unequal
3 greater
4 less
Gravitation

270388 If the area swept by the line joining the sun and the earth from Feb 1 to Feb 7 is ' \(A\) ', then the area swept by the radius vector from Feb 8 to Feb 28 is

1 \(A\)
2 \(2 \mathrm{~A}\)
3 \(3 \mathrm{~A}\)
4 \(4 \mathrm{~A}\)
Gravitation

270389 The motion of a planet around sun in an elliptical orbit is shown in the following figure. Sun is situated at one focus. The shaded areas are equal. If the planet takes time ' \(t_{1}\) ' and ' \(t_{2}\) ' in moving from \(\mathbf{A}\) to \(\mathrm{B}\) and from \(\mathbf{C}\) to \(\mathbf{D}\) respectively, then

1 radial acceleration is zero
2 tangential acceleration is zero
3 transverse acceleration is zero
4 All
Gravitation

270386 If the earth is at one-fourth of its present distance from the sun, the duration of the year would be

1 half the present year
2 one-eighth the present year
3 one-fourth the present year
4 one -sixteenth the present year
Gravitation

270387 The radius vector drawn from the sun to a planet sweeps out areas in equal time

1 equal
2 unequal
3 greater
4 less
Gravitation

270388 If the area swept by the line joining the sun and the earth from Feb 1 to Feb 7 is ' \(A\) ', then the area swept by the radius vector from Feb 8 to Feb 28 is

1 \(A\)
2 \(2 \mathrm{~A}\)
3 \(3 \mathrm{~A}\)
4 \(4 \mathrm{~A}\)
Gravitation

270389 The motion of a planet around sun in an elliptical orbit is shown in the following figure. Sun is situated at one focus. The shaded areas are equal. If the planet takes time ' \(t_{1}\) ' and ' \(t_{2}\) ' in moving from \(\mathbf{A}\) to \(\mathrm{B}\) and from \(\mathbf{C}\) to \(\mathbf{D}\) respectively, then

1 radial acceleration is zero
2 tangential acceleration is zero
3 transverse acceleration is zero
4 All