Kepler’s Laws
PHXI08:GRAVITATION

359928 If the sun suddenly disappears then

1 Earth still rotates normally
2 Earth moves in spiral path
3 Earth files away along tangential direction
4 None of the above
PHXI08:GRAVITATION

359929 The scheme of motion put forward by Ptolemy in order to describe the observed motion of the planets is that
I.
All celestial objects, stars, the sun and the planets, revolve around the earth.
II.
The planets are moving in an elliptical orbit with the centre of the ellipse moving in a circle.
Which of the following statement(s) is / are correct?

1 Only I
2 Only II
3 Both I and II
4 None of these
PHXI08:GRAVITATION

359930 In our solar system, the inter-planetary region has chunks of matter (much smaller in size compared to planets) called asteroids. They

1 Will not move around the sun since they have very small masses compared to sun
2 Will move in an irregular way because of their small masses and will drift away into outer space
3 Will move around the sun in closed orbits but not obey Kepler's laws
4 Will move in orbits like planets and obey Kepler's laws
PHXI08:GRAVITATION

359931 According to kepler's second law, line joining the planet to the sun sweeps out equal areas in equal time intervals. This suggests that for the planet.

1 Radial acceleration is zero
2 Tangential acceleration is zero
3 Radial and tangential accelerations are non zero
4 All
PHXI08:GRAVITATION

359932 Assertion :
A planet moves faster, when it is closer to the sun in its orbit and vice versa.
Reason :
Orbital velocity in orbit of planet is constant.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI08:GRAVITATION

359928 If the sun suddenly disappears then

1 Earth still rotates normally
2 Earth moves in spiral path
3 Earth files away along tangential direction
4 None of the above
PHXI08:GRAVITATION

359929 The scheme of motion put forward by Ptolemy in order to describe the observed motion of the planets is that
I.
All celestial objects, stars, the sun and the planets, revolve around the earth.
II.
The planets are moving in an elliptical orbit with the centre of the ellipse moving in a circle.
Which of the following statement(s) is / are correct?

1 Only I
2 Only II
3 Both I and II
4 None of these
PHXI08:GRAVITATION

359930 In our solar system, the inter-planetary region has chunks of matter (much smaller in size compared to planets) called asteroids. They

1 Will not move around the sun since they have very small masses compared to sun
2 Will move in an irregular way because of their small masses and will drift away into outer space
3 Will move around the sun in closed orbits but not obey Kepler's laws
4 Will move in orbits like planets and obey Kepler's laws
PHXI08:GRAVITATION

359931 According to kepler's second law, line joining the planet to the sun sweeps out equal areas in equal time intervals. This suggests that for the planet.

1 Radial acceleration is zero
2 Tangential acceleration is zero
3 Radial and tangential accelerations are non zero
4 All
PHXI08:GRAVITATION

359932 Assertion :
A planet moves faster, when it is closer to the sun in its orbit and vice versa.
Reason :
Orbital velocity in orbit of planet is constant.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI08:GRAVITATION

359928 If the sun suddenly disappears then

1 Earth still rotates normally
2 Earth moves in spiral path
3 Earth files away along tangential direction
4 None of the above
PHXI08:GRAVITATION

359929 The scheme of motion put forward by Ptolemy in order to describe the observed motion of the planets is that
I.
All celestial objects, stars, the sun and the planets, revolve around the earth.
II.
The planets are moving in an elliptical orbit with the centre of the ellipse moving in a circle.
Which of the following statement(s) is / are correct?

1 Only I
2 Only II
3 Both I and II
4 None of these
PHXI08:GRAVITATION

359930 In our solar system, the inter-planetary region has chunks of matter (much smaller in size compared to planets) called asteroids. They

1 Will not move around the sun since they have very small masses compared to sun
2 Will move in an irregular way because of their small masses and will drift away into outer space
3 Will move around the sun in closed orbits but not obey Kepler's laws
4 Will move in orbits like planets and obey Kepler's laws
PHXI08:GRAVITATION

359931 According to kepler's second law, line joining the planet to the sun sweeps out equal areas in equal time intervals. This suggests that for the planet.

1 Radial acceleration is zero
2 Tangential acceleration is zero
3 Radial and tangential accelerations are non zero
4 All
PHXI08:GRAVITATION

359932 Assertion :
A planet moves faster, when it is closer to the sun in its orbit and vice versa.
Reason :
Orbital velocity in orbit of planet is constant.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
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PHXI08:GRAVITATION

359928 If the sun suddenly disappears then

1 Earth still rotates normally
2 Earth moves in spiral path
3 Earth files away along tangential direction
4 None of the above
PHXI08:GRAVITATION

359929 The scheme of motion put forward by Ptolemy in order to describe the observed motion of the planets is that
I.
All celestial objects, stars, the sun and the planets, revolve around the earth.
II.
The planets are moving in an elliptical orbit with the centre of the ellipse moving in a circle.
Which of the following statement(s) is / are correct?

1 Only I
2 Only II
3 Both I and II
4 None of these
PHXI08:GRAVITATION

359930 In our solar system, the inter-planetary region has chunks of matter (much smaller in size compared to planets) called asteroids. They

1 Will not move around the sun since they have very small masses compared to sun
2 Will move in an irregular way because of their small masses and will drift away into outer space
3 Will move around the sun in closed orbits but not obey Kepler's laws
4 Will move in orbits like planets and obey Kepler's laws
PHXI08:GRAVITATION

359931 According to kepler's second law, line joining the planet to the sun sweeps out equal areas in equal time intervals. This suggests that for the planet.

1 Radial acceleration is zero
2 Tangential acceleration is zero
3 Radial and tangential accelerations are non zero
4 All
PHXI08:GRAVITATION

359932 Assertion :
A planet moves faster, when it is closer to the sun in its orbit and vice versa.
Reason :
Orbital velocity in orbit of planet is constant.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI08:GRAVITATION

359928 If the sun suddenly disappears then

1 Earth still rotates normally
2 Earth moves in spiral path
3 Earth files away along tangential direction
4 None of the above
PHXI08:GRAVITATION

359929 The scheme of motion put forward by Ptolemy in order to describe the observed motion of the planets is that
I.
All celestial objects, stars, the sun and the planets, revolve around the earth.
II.
The planets are moving in an elliptical orbit with the centre of the ellipse moving in a circle.
Which of the following statement(s) is / are correct?

1 Only I
2 Only II
3 Both I and II
4 None of these
PHXI08:GRAVITATION

359930 In our solar system, the inter-planetary region has chunks of matter (much smaller in size compared to planets) called asteroids. They

1 Will not move around the sun since they have very small masses compared to sun
2 Will move in an irregular way because of their small masses and will drift away into outer space
3 Will move around the sun in closed orbits but not obey Kepler's laws
4 Will move in orbits like planets and obey Kepler's laws
PHXI08:GRAVITATION

359931 According to kepler's second law, line joining the planet to the sun sweeps out equal areas in equal time intervals. This suggests that for the planet.

1 Radial acceleration is zero
2 Tangential acceleration is zero
3 Radial and tangential accelerations are non zero
4 All
PHXI08:GRAVITATION

359932 Assertion :
A planet moves faster, when it is closer to the sun in its orbit and vice versa.
Reason :
Orbital velocity in orbit of planet is constant.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.