Latest Questions Sample Paper 2015 for (IB) Intelligence Bureau Competitive Examinations 2015 Must Prepare Now

18. The most densest substance on the Earth is
(A) Platinum
(B) Copper
(C) Steel
(D) Osmium

19. A camera uses a __________ to form an image.
(A) convex lens
(B) concave lens
(C) condenser lens
(D) none of these

20. Which from the following is NOT a conductor?
(A) Aluminium
(B) Silicon
(C) Graphite
(D) All are conductors

21. Hazrat Ali (R.A) was martyred in the __________ Hijrah.
(A) 36
(B) 38
(C) 40
(D) 42

22. Which country is called the “Land of Prophets”?
(A) Saudi Arabia
(B) Iraq
(C) Syria
(D) Palestine

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