Symbol
No. ................ SRE-111
SEE
(Supplementary/Upgrade) 2075 (2019)
Compulsory
Science
Answer all the questions.
(Group 'A') 15x1=15
1. Write short answer of the following questions.
a.
What is the relation
between gravitational force and the distance between two bodies?
b.
What is renewable source
of energy?
c.
Define heat on the basis
of molecular motion.
d.
What is centre of
curvature of lens?
e.
What is electromagnet?
f.
In which group of modern
periodic table, are the elements with valency 2 kept?
g.
Define alkali.
h.
Which metal can be
obtained from haematite?
i.
Write any two examples of
alkane.
j.
In which plant seri
silkworm feed on?
k.
What is the name of valve
found in between right auricle and right ventricle?
l.
Write karyotype of
klinefelter's syndrome.
m.
Write the name of two growth
hormones used in vegetative propagation.
n.
Write any two natural
sources of air pollution.
o.
What is the time period of
Cenozoic era?
(Group 'B') 13x2=26
2.
Why does the height of
mercury in a barometer decreases on going up on high mountain?
3.
In the context of Nepal,
wind energy can be taken as a probable alternative source of energy. Give two
reasons.
4.
A person with myopic eye
uses the glass of negative power, why?
5.
Write two differences
between electric motor and dynamo.
6.
The electronic
configuration of A and B are
and 
respectively. Which one is more reactive? Why?
and respectively. Which one is more reactive? Why?
7.
Give one example of
exothermic and endothermic reaction each.
8.
What is formed if
carbondioxide is cooled to -78°C? Write the use of that substance.
9.
Write down any two
differences between alkane and alkene.
10.
If A and B are fertilized
and unfertilized eggs respectively. Which type of bee developed from B? Write
down one function of such bee.
11.
Blood sample of a man
contains 20 lakh RBC per mm3 volume. Is it normal or not? Why?
12.
A male has larger breast
than a normal male and he is suffered by infertility. What type of chromosomal
disorder is it? What is its cause?
13.
Some plants like potato
and sugarcane have less developed seeds. Which type of common asexual
reproduction can be used to reproduce them? Why is it advantageous to farmer?
Write any one reason.
14.
Why does tail appear in
commet when it becomes closer to the sun?
(Group 'C') 6x3=18
15.
Hot water of mass 10 kg at
90°C is mixed for bathing purpose with 20 kg of water at 20°C. What will be the
final temperature of water?
16.
Study the given diagram
and answer the following questions.
i. What is the weight of stone in air?
ii. What is the upthrust exerted by the water on the stone?
iii. Find the mass of the stone.
17.
Which is the metal having
electronic configuration
? Write any two applications of this metal.
18.
Write any three ways to
solve the problem of chemical pollution.
19.
Draw a clean diagram of
neuron and label dendrite, cell body and axon.
20.
Identify three ways of
conserving and managing the forest in the context of Nepal.
(Group 'D') 4x4=16
21.
The value of 'g' on the
surface of earth is 9.8 m/s2. If mass of Jupiter is 319 times the mass of the
earth and its radius is 11 times the radius of the earth, find the value of 'g'
on the surface of Jupiter. What will be the weight of a man having mass 50 kg
on the surface of Jupiter?
22.
What type of salt is
formed when acetic acid is reacted with sodium hydroxide? Why? Also write the
chemical reaction. Write the chemical reaction that takes place when HCl is
used instead of the acid above.
23.
Draw the diagram of
fertilization process in angiospermic plants and label the parts stigma and
ovule. Write one role of each stigma and ovule in fertilization process.
24.
Suggest any four major
ideas for reducing the effects of climate change in Nepal.
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(SEE, Science, Physics, Chemistry, Biology, Geology and Astronomy)
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(SEE, Science, Physics, Chemistry, Biology, Geology and Astronomy)
Click Here to Download This Question.
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