I am providing you the sample question paper of National Talent Search Exam NTSE Exam

NTSE Exam question paper

Commercial electric motors do not use:
(A) An electromagnet to rotate the armature
(B) Effectively large no. of turns of conducting wire in the current carrying coil
(C) A permanent magnet to crate the armature
(D) A soft iron core on which the coil is wound

An apple falls from a tree because of gravitation between the earth and apple. If F1is the magnitude of force
exerted by the earth on the apple and F2is the magnitude of force exerted by apple on earth, then:
(A) F1is very much greater than F2 (B) F2is very much greater than F1
(C) F1is only a little greater than F2 (D) F1and F2are equal

In an experiment with a rectangular glass slab, for an angle of incidence of 60o in air, angle of refraction is
measured to be r1. When the glass slab is replaced by a hollow slab filled with water, angle of refraction is
measured to be r2. Then:
(A) r2 = r1 (B) r2 > r1
(C) r2 < r1 (D) Cannot say

A hydrometer floats with half of its stem outside water surface. It is now placed in alcohol (R.D = 0.8). The
hydrometer floats:
(A) with stem at the same position (B) with more stem inside the alcohol
(C) with more stem outside alcohol (D) in tilted pos8ition

A key of a mechanical piano is struck gently and thenstruck again but much harder this time. In the second case:
(A) Sound will be louder but pitch will not be different
(B) Sound will be louder and pitch will also be higher
(C) Sound will be louder but pitch will be lower
(D) Both loudness and pitch will remain unaffected

The intensity of sound wave gets reduced by 20% on passing through a slab. The reduction in intensity on
passing through two consecutive slabs is:
(A) 40% (B) 36%
(C) 30% (D) 50%


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