# National Standard Examination in Astronomy (NSEA) Solved Paper 2016 Part-12

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Q: 38. The number is

(A) A perfect square and a perfect cube

(B) A perfect cube but not a perfect square

(C) A perfect square but not a perfect cube

(D) Neither a perfect square nor a perfect cube

Answer: (C)

Q: 39. Radius and moment of inertia of a smooth pulley are 0.1 m and 1 kg. respectively. A tangential force sets the pulley into rotation. Direction of its rotation reverses after some time. The time duration after which the direction will reverse is

(A) 6s

(B) 8s

(C) 4s

(D) 12 s

Answer: (A)

Q: 40.

(A)

(B)

(C)

(D) None of the above

Answer: (B)

Q: 41. The figure shows a particular position of Vernier calipers. The value of X in cm is

(A) 0.03

(B) 0.15

(C) 3.83

(D) 0.02

Answer: (A)

Q: 42. If A and B are two sets then the set A × B is given by

(A)

(B)

(C)

(D)

Answer: (C)

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