NSEJS PREVIOUS PAPERS 2013-2014
In this post, you will get NSEJS Previous Papers 2013-2014. NSEJS is the first phase of IJSO, it is organized by the IAPT with HBCSE. The full form of NSEJS is National Standard Examination in Junior Science.
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NSEJS Previous Papers 2013-2014 Ques No 1:
One side of a glass slab is silvered as shown in the figure. A ray of light is incident on the other side at an angle of incidence 45 degree. Refractive index of glass is 1.5. The deviation of the ray of light from its initial path when it comes out of the slab is (Given that sin-1sqrt(2)/3 = 28 degree)
A. 90 degree
B. 180 degree
C. 120 degree
D. 45 degree
NSEJS Previous Papers 2013-2014 Ques No 2:
The number 5sqrt(41) lies between
A. 29 and 30
B. 30 and 31
C. 31 and 32
D. 32 and 33
NSEJS Previous Papers 2013-2014 Ques No 3:
Oxidation number and co-ordination number of Pt in cisplatin PtCl2(NH3)2 are respectively
A. +4 and 2
B. +2 and 4
C. 0 and 4
D. +2 and 6
Passage for Q(4–6) :
In a field one summer’s day a Grasshopper was hopping about, chirping and singing to its hearts’s content. An Ant passed by, bearing along with great toil an ear of pea he was taking to the nest. “Why not come and chat with me, “ said the Grasshopper, “instead of to toiling and moling in that way ? ” “I am helping to lay up food for the winter,” said the Ant, “and recommend you to do the same.” “Why bother about winter?” said the Grasshopper ; “We have got plenty of food at present.” But the Ant went on its way and continued its toil. When the winter came the Grasshopper had no food an found itself dying of hunger – while it saw the ants distributing every day corn and grain from the stores they had collected int he summer. Then the Grasshopper knew : It is best to prepare for days of need
NSEJS Previous Papers 2013-2014 Ques No 4:
In the passage given above there seems to be a factural error with respect to the ant carrying the food to the nest.The most probable reason for this mistake would be
A. Pea pod is too heavy for an ant to carry to its nest.
B. Pea cannot be carried by an ant in the summber because it is a Rabi crop.
C. Ant couldn’t have passed by easily since it is the favourite food of grasshoppers.
D. Grasshoppers avoid coming out in summber and thus there cannot be grasshopper in the story.
NSEJS Previous Papers 2013-2014 Ques No 5:
What could be the most plausible reason that all the ants that toiled and moiled int he summer were
happy and content in the winter
A. Ants were probably happy since their food was not shared with Grasshopper
B. Ants need not worry to work anymore since they had food stocked.
C. Ants were happy since they enjoyed working together in summer.
D. Food that was procured was efficiently distributed and managed so that all the ants were fed equality.
NSEJS Previous Papers 2013-2014 Ques No 6:
Grasshopper was at fault in this story mostly because
A. Of its attitude towards ants who were working tirelessly
B. Of not having a forethought to store food for the upcoming winter season.
C. Of chirping and singing to its heart’s content in the summer
D. It should have asked ants for the food and managed to surpass the winter somehow.
NSEJS Previous Papers 2013-2014 Ques No 7:
An object of mass 1 kg is made to slide down a smooth inclined plane of length 20m. If the kinetic energy possessed by the body at the bottom of the plane is 100 J, then the inclination of the plane with the horizontal is (take g = 10 ms–2)
NSEJS Previous Papers 2013-2014 Ques No 8:
Two circles each of radius 3 touch each other externally in the plane. Inhow many ways can a circle of radius 8 be placed in the plane touching each of these tow circles ?
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NSEJS Previous Papers 2013-2014 Ques No 9:
Which of these elements has the greatest electronegativity?
NSEJS Previous Papers 2013-2014 Ques No 10:
An inclined plane of inclination θ is placed in water as shown in figure given below. Consider a small area (ΔA) around point P at a depth h. If Density of water is ρ and acceleration due to gravity is g the force experienced by ΔA due to hydrostatic pressure is
NSEJS Previous Papers 2013-2014 Ques No 11:
If 3x + 3y – 1, 4×2 + y – 5, 4x + 2y are the sides of an equilateral triangle, its area is closest to the integer
NSEJS Previous Papers 2013-2014 Ques No 12:
The pH of a 0.025 M solution of KOH is
NSEJS Previous Papers 2013-2014 Ques No 13:
Consider the following two statements about light & sound. Choose the most appropriate option
(i) When light and sound travel air to water, light may bend towards normal while sound may bend away from normal.
(ii) Sound is longitudinal wave while light is transverse wave
A. Statement (i) is correct while statement (ii) is incorrect
B. Statement (i) and statement (ii) are both correct and statement (ii) is not the reason for statement (i)
C. Statement (i) and statement (ii) are incorrect
D. Statement (i) and statement (ii) are correct and Statement (ii) is the correct reason for statement (i)
NSEJS Previous Papers 2013-2014 Ques No 14:
If xy2 = a3 , yz2 = b3 and zx2 = c3 then z3 equals
NSEJS Previous Papers 2013-2014 Ques No 15:
How many H atoms are in 3.4 g of C12H22O11 ?
A. 6.0 × 1023
B. 1.3 × 1023
C. 3.8 × 1022
D. 6.0 × 1021
Passage Q(16-18) :
Diatoms are the most common photosynthetic aquatic microorganisms group of algae which are unicellular and can exist as colonies in the shape of filaments or ribbons, fans, zigzags or stars depending on the quality of the water. Diatom communities are a popular tool for studies of water quality and pollution management. Karthik from Bangalore recently went on a field trip from Bangalore to Mysore. On the way he stopped his car at a sewage canal, a lake and a mountain stream and collected water samples from all the these places for his lab work. After a careful analysis of his water samples. he observed that diatoms came with varying size/shape and the size/shape increases has (have?) sometihing to do with the water quality
NSEJS Previous Papers 2013-2014 Ques No 16:
Below are the diatoms observed under a microscope by Karthik. Help him to recognise the correct order of sample localities (Viz., Canal, Stram and lake).
A. A-Mountain stream, B – Sewage Canal, C – Lake
B. A – Sewage Canal, B – Lake, C – Mountain Stream
C. A – Lake , B – Mountain stream, C – Sewage Canal
D. A – Mountain stream , B – Lake, C – Sewage canal
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