NSEJS PREVIOUS PAPERS 2011-2012

In this post, you will get NSEJS Previous Papers 2011-2012. 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. 

PART A : Only ONE out of four options is correct

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NSEJS Previous Papers 2011-2012 Ques No 1:

Let the electrostatic force between two electrons (Fe) be x times the gravitational force (Fg) between them. Then, x is of the order of

Options:

A. 10⁴⁰

B. 10⁴²

C. 10³⁸

D. 10³⁷

NSEJS Previous Papers 2011-2012 Ques No 2:

In the figure shown below, ∠ABD = 2x, ∠ADB = 3x, ∠APB = 4x and ∠CBQ = 7x. Therefore, ∠BCD is

Options:

A. 90 degree

B. 85 degree

C. 72 degree

D. 96 degree

NSEJS Previous Papers 2011-2012 Ques No 3:

An arrow shot vertically upwards loses its initial speed by 60% in 3 seconds. The maximum height reached by the arrow is (g = 9.8 ms^-2)

Options:

A. 122.5 m

B. 44.1 m

C. 100 m

D. 45 m

NSEJS Previous Papers 2011-2012 Ques No 4:

Bromine can be liberated from KBr solution by the action of

Options:

A. iodine solution

B. chlorine water

C. NaCl

D. Kl

NSEJS Previous Papers 2011-2012 Ques No 5:

A certain applied to a body A gives it an acceleration of 10 ms^-2. The same force applied to body B give it an application of 15 ms^-2. If the two bodies are joined together and the same force is applied to the combination, the acceleration will be

Options:

A. 6 ms^-2

B. 25 ms^-2

C. 12.5 ms^-2

D. 9 ms^-2

NSEJS Previous Papers 2011-2012 Ques No 6:

Oxygen exhibits (-1) oxidation state in 

Options:

A. OF₂

B. H₂O

C. H₂O₂

D. HClO

NSEJS Previous Papers 2011-2012 Ques No 7:

The process involved in healing of the wound is

Options:

A. Meiosis I and II

B. Mitosis

C. Meiosis I

D. Meiosis II

NSEJS Previous Papers 2011-2012 Ques No 8:

The family pedigree of Queen Victoria shows a number of hemophiliac descendants as

Options:

A. she herself was hemophiliac

B. hemophilia is autosomal recessive disorder

C. hemophilia is sex linked recessive disorder and Queen Victoria was a carrier

D. hemophilia is caused by contact and therefore it was seen in the royal family descendents

NSEJS Previous Papers 2011-2012 Ques No 9:

A ball is dropped from a height of 7.2 m. It bounces back to 3.2 m after striking the floor. The ball remains in contact with the floor for 20 ms. Given that g = 10 ms^-2, the average acceleration of the ball during the contact is

Options:

A. 100 ms^-2

B. 200 ms^-2

C. 600 ms^-2

D. 1000 ms^-2

NSEJS Previous Papers 2011-2012 Ques No 10:

In a triangle ABC, D is a point on side AC such that ∠ABD = (1/2)∠ABC. If AB = 36, BC = 48, CD = 28, then the length DA will be

Options:

A. 20

B. 21

C. 22

D. 24

NSEJS Previous Papers 2011-2012 Ques No 11:

Human body cannot digest carbohydrate in the form of

Options:

A. Sugars

B. Starch

C. Cellulose

D. Glycogen

NSEJS Previous Papers 2011-2012 Ques No 12:

Unsaturated fatty acids contain

Options:

A. At least one double bond

B. Two double bonds

C. More than two double bonds

D. No double bonds

NSEJS Previous Papers 2011-2012 Ques No 13:

A loaded bus (mass m₂) and an unloaded bus (mass m₁) are both moving with the same kinetic energy. Brakes are applied to both the buses so as to exert equal retarding force. If S₁ and S₂ are the distance covered by the two buses respectively. before coming to rest, than S₁/S₂ is

Options:

A. 1

B. m₁/m₂

C. sqrt(m₁/m₂)

D. m₁²/m₂²

NSEJS Previous Papers 2011-2012 Ques No 14:

The center of a clock is taken as origin. At 4 : 30 pm, the equation of line along minute hand is x = 0. Therefore, at this instant the equation of line along the hour hand will be

Options:

A. x – y = 0

B. x + y = 0

C. y = sqrt(2)

D. y = x/sqrt(2)

NSEJS Maths Questions Bank EBook

Get NSEJS 2008 to 2018 Maths Questions Bank with Solutions. To get this combo ebook, click below RED button.

NSEJS Previous Papers 2011-2012 Ques No 15:

Heterosis is the

Options:

A. superiority of male parent over the hybrid

B. superiority of female parent over the hybrid

C. superiority of hybrid over the parent

D. superiority of both the parents over the hybrid

NSEJS Previous Papers 2011-2012 Ques No 16:

An equilateral triangle has area A cm². A regular hexagon of maximum area is cut off from the triangle. If the area of the hexagon is 320 cm², the area A is

Options:

A. 640 cm²

B. 480 cm²

C. 600 cm²

D. 400 cm²

NSEJS Previous Papers 2011-2012 Ques No 17:

A ray of light is incident on a hallow glass prism as shown. Then the ray will undergo

Options:

A. deviation and dispersion both 

B. deviation but no dispersion

C. dispersion but no deviation

D. neither deviation nor dispersion

NSEJS Previous Papers 2011-2012 Ques No 18:

In a neon discharge tube 2.8 x 10⁸ Ne⁺ ions move to the right per second while 1.2 x 10¹⁸ electrons move to the left per second. Therefore, the current in the discharge tube is 

Options:

A. 0.64 A towards right

B. 0.256 A towards right

C. 0.64 A towards left

D. 0.256 A towards left

NSEJS Previous Papers 2011-2012 Ques No 19:

Genome of a sexually reproducing organism is 

Options:

A. all the chromosome present in the diploid cell

B. total number of chromosomes present in the haploid cell

C. total number of genes present in a cell

D. totally of DNA present in the haploid cell

NSEJS Previous Paper 2011-2012 Ques No 20:

Three equal resistance are connected shown in the figure. Maximum power that can be dissipated by each resistance is 40 watt. Therefore, the maximum power that can be safely dissipated in the combination is

Options:

A. 120 watt

B. 80 watt

C. 60 watt

D. 40 watt

NSEJS Previous Paper 2011-2012 Ques No 21:

The compound that has both ionic and covalent bonds is

Options:

A. boric acid (H₃BO₃)

B. sodium chloride (NaCl)

C. ethyl alcohol (C₂H₅OH)

D. sodium phenolate (C₆H₅ONa)

NSEJS Previous Paper 2011-2012 Ques No 22:

The colonial form of algae is 

Options:

A. Chlamydomonas

B. Chara

C. Porphyra

D. Volvox

NSEJS Previous Paper 2011-2012 Ques No 23:

An object is placed at a distance x₁ from the focus of a concave mirror. Its real image is formed at a distance x₂ from the focus. Hence, the focal length of the mirror is

Options:

A. x₁x₂/(x₁ + x₂)

B. sqrt(x₁x₂)

C. (x₁ + x₂)/2

D. |x₁ – x₂|

For full paper of NSEJS Previous Paper 2011-2012, Click Here

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NSEJS Maths Questions Bank EBook

Get NSEJS 2008 to 2018 Maths Questions Bank with Solutions. To get this combo ebook, click below RED button.