Secondary Education Examination (SEE)
Science and Technology
2082 (2026) · Koshi · English medium
ℹ️ Give the answers in your own creative style based on the given instructions. Figures in the margin indicate the full marks. Attempt all the questions.
Section 'A' — Multiple Choice Questions
Choose the best alternative and write in the answer sheet. (10×1=10)
- 1
a)If in experiment is done to find how various amount of fertilizers effect the height of tomato plant, what is the independent variable in this experiment?1
aHeight of tomato plantbAmount of fertilizercAmount of waterdType of soilb)Which of the following statements is true about baseband transmission?1
aDigital signals are converted to analog signals and sent to the channelbSeparate channels are used for sending and receiving signalscSending and receiving signals are done in the same channel simultaneouslydGenerally, it is used for long distance communicationc)How does plantation of trees help reduce the effect of climate change?1
aBy increasing oxygen level in the atmospherebBy reducing the amount of carbon dioxide through photosynthesiscBy lowering the temperature of the environmentdBy making a lot of rainfalld)If the weight of an object on the surface of the Moon is 66 N, what might be the weight of the object on Earth? (Acceleration due to gravity of Moon is 1.62 m/s²)1
a396 Nb66 Nc11 Nd6.6 Ne)How much force is produced in piston Q in the given figure?1
a80 Nb100 Nc400 Nd500 Nf)What is called the effect of heat on the volume of an object?1
athermal expansionbthermal conductioncthermal equilibriumdthermal radiationg)If a transformer has more turns in the secondary winding than in the primary winding, which of the following statements is correct?1
aIt does not change A.C. voltagebIt decreases A.C. voltagecIt increases A.C. voltagedIt increases A.C. voltage according to the situationh)Which of the following shows the correct order of the atomic radii of the elements nitrogen, oxygen and fluorine?1
aO < R < NbN < F < OcO < N < FdF < O < Ni)Which is the correct order of metal processing for their purification?1
aConcentration, Oxidation, Refining, ReductionbConcentration, Reduction, Oxidation, RefiningcConcentration, Reduction, Refining, OxidationdConcentration, Oxidation, Reduction, Refiningj)Which of the following is a fungicide?1
aCypermethrinbCarbendazimcButachlordZinc Phosphide
Section 'B'
Write very short answers of the following questions. (9×1=9)
- 2
a)Write any one difference between rare and endangered species.1
b)Write one medicinal use of the organism shown in the figure.1
c)Write the principle which explains why a ship floats in water.1
d)To which special property of water is given graph related?1
e)What is the relationship between thickness and focal length of a lens?1
f)Give any one reason for elements in the same group having the same valency despite differences in atomic size.1
g)Write the balanced chemical equation that takes place while heating calcium carbonate.1
h)Show the diagram of purification of impure copper by electro-refining method.1
i)A saturated hydrocarbon has a molecular mass of 58 amu. Write its IUPAC name.1
Section 'C'
Write short answers of the following questions. (14×2=28)
- 3
Check the validity of the equation below by its unit wise analysis.2
- 4
Write the difference between the given organism based on respiration and reproduction.2
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