2486: A free-floating astronaut A pushes another free-floating astronaut B in space. The mass of A is greater than that of B. The force exerted by the astronaut A on the astronaut B will be:
(a) Equal to zero.
(b) Equal to the force exerted by B on A.
(c) Greater than the force exerted by B on A.
(d) Less than the force exerted by B on A
2487: Bhakra Nangal, Hirakud and Kosi projects are situated on the rivers:
(a) Sutlej, Mahanadi and Kosi
(b) Sutlej, Mahanadi and Purna
(c) Mahanadi, Beas, Godavari
(d) Beas, Mahanadi, Sutlej
2488: A person stands at the middle point of a wooden ladder which starts slipping between a vertical wall and the floor of a room, while continuing to remain in a vertical plane. The path traced by a person standing at the middle point of the slipping ladder is:
(a) A straight line
(b) An elliptical path
(c) A circular path
(d) A parabolic path
2489: Consider the following statements:
1.The annual range of temperature is greater in the Pacific Ocean than that in the Atlantic Ocean.
2. The annual range of temperature is greater in the Northern Hemisphere than that in the Southern Hemisphere.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
2490: There are only two known examples of cave paintings of the Gupta period in ancient India. One of these is paintings of Ajanta caves. Where is the other surviving example of Gupta paintings ?
(a) Ellora caves
(b) Bagh caves
(c) Nasik caves
(d) Lomas Rishi cave