Kepler’s laws of planetary motion state that (a) All planets move in elliptical orbits with the Sun at one of the focal points (b) The radius vector drawn from the sun to a planet sweeps out equal areas in equal time intervals. This follows from the fact that the force of gravitation on the planet is central and hence angular momentum is conserved. (c) The square of the orbital period of a planet is proportional to the cube of the semi major axis of the elliptical orbit of the plane.
Four statements are given below at A, B, C and D. There may be some errors in the given statement(s). The incorrect statement is your answer.
A) To drain water away from the tracks, railroad beds, like road beds, are designed in which there is usually a bed of rock and gravel resulting in fast drainage from the tracks.
B) Railroad beds, like road beds, are designed in which there is usually a bed of rock and gravel that results in the fast drainage from the tracks.
C) A bed of rock and gravel, called the railroad bed, is designed similar to a road bed to drain water away from the tracks.
D) Railroad beds, like road beds, are designed to drain water apart from the tracks, so there is usually a bed of rock and gravel resulting in fast drainage away from the tracks.
A) To drain water away from the tracks, railroad beds, like road beds, are designed in which there is usually a bed of rock and gravel resulting in fast drainage from the tracks.
B) Railroad beds, like road beds, are designed in which there is usually a bed of rock and gravel that results in the fast drainage from the tracks.
C) A bed of rock and gravel, called the railroad bed, is designed similar to a road bed to drain water away from the tracks.
D) Railroad beds, like road beds, are designed to drain water apart from the tracks, so there is usually a bed of rock and gravel resulting in fast drainage away from the tracks.
Answer & ExplanationAnswer: D) Railroad beds, like road beds, are designed to drain water apart from the tracks, so there is usually a bed of rock and gravel resulting in fast drainage away from the tracks.
In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct speech. The principal said, "Be quiet, girls."
A) The principal called the girls and ordered them to be quiet.
B) The principal commanded the girls that they be quiet.
C) The principal urged the girls to be quiet.
D) The principal said that the girls should be quiet.
A) The principal called the girls and ordered them to be quiet.
B) The principal commanded the girls that they be quiet.
C) The principal urged the girls to be quiet.
D) The principal said that the girls should be quiet.
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