Madhyamik Physical Science Question Paper 2022
Madhyamik, the Class 10 School leaving examination, is conducted by the West Bengal Board of Secondary Education (WBBSE). The examination is held in the month of March 2022. Each paper started on each day from 11.45 A.M to 3.00 P.M
Students can download the syllabus and the model question papers from the official website of West Bengal Board of Secondary Education. Here is the link is provided http://www.wbbse.org/.
Having the knowledge of previous years question papers of Madhyamik Pariksha is essential for achieving the best performance. At the Vision Success (website), you can view or even can downloaded in PDF form, the previous year question papers. This post provides you the Madhyamik Physics Question paper 2022
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Vision Success
West Bengal Board Secondary Education
ENGLISH
VERSION
Group ‘A’
Multiple choice questions. Four alternative answers are given
for each of the following questions. Write the correct one. 1 x 15=15
1.1Which layer of atmosphere has the
greatest density?
(a) Troposphere (b) Stratosphere (c)
Mesosphere (d) Thermosphere
1.2 The P - V graph of Boyle's Law
related to gas is
1.3 The
relation between molecular mass (M) and vapour density (D) of gascous substance
is
(a) 2M = D (b)
M=D2 (c) M=2.8D (d) M=2D
1.4 If
the radius of curvature of a concave mirror is 20cm, then focal length of the
mirror will be
(a) 20 cm b)
15 cm (c) 10 cm (d) 40 cm
1.5 The
wavelength of which of the following is greater than that of visible light?
(a) x – ray (b)
infrared ray (C) Y-ray (d) ultraviolet ray
1.6
Dentists use
(a) Convex
mirror (c) concave
mirror b) convex lens (d) concave lens
1.7 Charge of an electron is
(a) -3.2
x 10-19C (b) -1.6x10-19C
(c) 1.6x10-19 (d) 3.2 x 10-190c
1.8 If
the resistance (R) of the conductor and time of flow of current in the
conductor (1) remain unchanged, the relation between the heat produced (H) in
the conductor and flow of current (I) is
(a) Hal (b) Ha (c) Hal (d) Ha
1.9 If
12C of charge flows through a conductor for 2 minutes, the electric current is
(a) 6 amperes
(b) 0.1
amperes (c) 24 amperes
(d) 10
amperes
1.10 Number
of groups in the long periodic table is
(a) 9 (b) 13 (c)
18 (d) 19
1.11 The
order of oxidizing property of Cl (17), 1 (53), F (9), Br (35) belonging to
group 17 of long periodic table is
(a)
F<CI<Br</ (b)
Cl>1>F>Br
(c)
CI>F> Br>I (d)
F>Cl> Br>I
1.12 For
which of the following ionic compounds no ion has octet?
(a) LiH (b) Cao (c) Nacl (d) MgCl2
1.13 The
solid state of which of the following compounds is not composed of molecules?
(a)
Sugar (b) Glucose (c) Sodium fluoride (d) Hydrogen chloride
1.14 Acetic acid is a weak electrolyte because
in aqueous solution acetic acid is
(a) non-conductor of electricity (b) completely dissociated
(c) partially dissociated (d) not dissociated
1.15 During electrolysis
(a) Oxidation occurs at cathode and reduction
occurs at anode
(b) Oxidation occurs at both the electrodes
(c) Reduction occurs at both the electrodes
(d) Reduction occurs at cathode and oxidation
occurs at anode.
Group
'B'
2. Answer
the following questions (alternatives are to be noted):
2.1 Mention
one fuel which is alternative to fossil fuel.
2.2 Write
the name of a gas which increases atmospheric temperature.
OR
Fill in
the blank:
___________radiation,
coming from the sun is prevented by the ozone layer from falling on the earth's
surface.
2.3 What
is SI unit of pressure of gas?
2.4 What
are constants in Charles' law?
OR
Write
whether the following statement is True or False:
Per
degree interval in kelvin scale of temperature is equal to per degree interval
in celcius scale.
2.5 Is
it possible to form a virtual image of shorter length than the length of the object
by any mirror?
2.6 Which
type of mirror is used in the headlight of a motor car?
2.7 If
the refractive indices of a medium for red and blue colours of light are ur
and ub respectively, which one is greater in magnitude?
2.8 What
is the SI unit of electric charge?
2.9 What
is the unit of electrical conductance?
OR
What are
the constituents of fuse wire?
2.10 Kilowatt
– hour' is the unit of which physical quantity?
2.11
Match the Right column with the Left column: 1
X4
|
Left
Column |
Right
Column |
||
|
2.11.1 |
Acetic
acid |
A |
Non
conductor of electricty |
|
2.11.2 |
Glass |
B |
Weak
electrolyte |
|
2.11.3 |
Most
electronegative element |
C |
Krypton |
|
2.11.4 |
One
noble element |
d |
Fluorine |
2.12 Arrange
F, I, Br, Cl in decreasing order of electro negativity: 1
2.13 In
which group of long periodic table, elements of all three physical state -
gaseous, liquid and solid are present?
OR
To which
group of long periodic table do the alkali metals belong?
2.14 Show
the conventional representation of H20 molecule by 'dash' sign.
2.15 The
electronic consiguration of hydride ion (H“) is like the electronic
configuration of the atom of which element?
OR
Draw the
Lewis dot diagram of H2 molecule.
2.16 Give
example of a covalent liquid.
2.17 Write
whether the following statement is True or False :
The
electrical conductivity of solid NaCl is greater than the electrical
conductivity of fused Nacl.
2.18. What
reaction occurs at the cathode in the electrolyte method of extraction of aluminum?
OR
Write
whether the following statement is true or False:
Free
electrons carry electricity through electrolytic substances.
Group
'C'
3. Answer the following questions (alternatives are 10 be noted): 2x9
3.1 What
is global warming? 2
3.2 Ali
pressure of 770 mmHg a fixed mass of hydrogen gas occupies a volume of 75cm3
at 27 C. What volume will the mass of hydrogen gas occupy at that temperature
and 750mmHg pressure? 2
OR
What
will be the volume of 0.18 of (), gas (O 16) at it pressure of 2 atmosphere and
temperature of 300K? 2
R =
0.082 litre - atmospheremole-1
K-1
.
3.3 Determine the angle of deviation for the refraction of light rays from rarer to denser medium (angle of incidence = I, angle of refraction = r ) 2
OR
Why do
the green leaves of tree appear 'green ‘in sunlight? 2
3.4 Give
the definition of electromotive force of an electric cell in open circuit. 2
3.5 Why
are the clements of group 2 of long periodic table called alkaline earth
metals? 2
OR
Give
example of a transitional clement and it Transuranic clement. 2
3.6 What
type of chemical bond is present in NH3? Draw Lewis electron dot
diagram of NH3. 2
(The
atomic number of H and N are 1 and 7 respectively)
3,7 How is
ionic bond formed in sodium fluoride? 2
(The
atomic number of F and Na are 9 and 11 respectively)
OR
C has 4
electrons in its outermost shell and 0 has 6 electrons in its outermost shell.
Draw the Lewis dot diagram of CO2 molecule. 2
3.8 Distinguish
between naphthalene and sodium chloride by two physical properties. 2
3.9 What
is meant by strong electrolyte? 2
OR
What are
meant by cathode and anode electrodes? 2
Group
'D'
4. Answer
the following questions (alternatives are to be noted):
4.1 Establish
the combined form of Boyle's law and Charles' law. 3
4.2 By
the reaction of aluminum with 40 grams of metallic oxide and high temperature,
28 grams of the metal and 25.5 grams of aluminum oxide are produced. How many
grams of aluminum are required for the reaction? 3
OR\
The
chemical equation for the reaction between sulphuric acid and sodium hydroxide
is:
H2SO.
+ 2NaOH →→ Na2SO. + 2H20
How many
grams of sodium hydroxide will be required to react completely with 4.9 grams
of sulphuric acid?
(H= 1, 0
= 16, Na = 23, S = 32) 3
4.3 A
light is incident from air medium on another medium. If the refractive index of
this medium is 1.5 and the wavelength of light in this medium is 4000A, what is
the wavelength of light in the air medium? What is the velocity of the light in
this medium? 3
OR
As a
result of refraction of light through an equilateral prism the angle of
deviation becomes 40°. If the paths of the ray through the prism are parallel to
the base of the prism, determine the angle of incidence at the first surface of
prism. 3
3
4.4 Draw
refracted rays for the incident rays which are parallel to the principal axis
of a convex lens. Mark focus (F). 3
OR
Explain
the converging action of a convex lens.
4.5 What
is long-sightedness? What type of lens is used to remedy this defect? 2+1
4.6 If
two eclectic bulbs of ratings -240 V-60 W' and '240 V-100W' are connected in
series, which one will shine brighter? 3
(Filaments
of both the bulbs are of same material)
OR
An
electric cell of internal resistance 5Ωand emf 2Ω is connected to a resistor of
15Ω. Determine the potential difference between the two ends of the cell. 3
4.7 Which
energy is transformed to which energy in an electric motor? Why in domestic
circuits, electric bulbs, electric fans, refrigerators etc., are connected in
parallel combination? 3
4.8 State
Ohm's law. If a potential difference of 10 V is applied between the two ends of
a conductor, electric current of 0.1 A flows. Determine the resistance of the
conductor. 2+1
4.9 The
first three elements of group 16 of long periodic table are O, S, and Se.
Arrange them in the order of decreasing atomic radius, increasing electro negativity
and decreasing ionization energy.
4.10
What type of chemical bond is present in MgCl2? How are the chemical
bonds formed in MgCl2? (Atomic number of Mg and Cl are 12 and 17
respectively) 1
+ 2
Or
Why an aqueous
solution of sodium chloride is conductor of electricity but the aqueous
solution of sugar or glucose is not? 3
Or
4.11.
What is electroplating? What is the cathode in the electroplating of silver
over a copper material?
2 + 1
4.12 Write
the reaction occurring at the cathode in the electrolysis of acidulated Write
the reaction water using platinum electrodes. Why is acidulated water instead
of pure Water used for electrolysis?
1 + 2
OR
Write
the reactions occurring at cathode and anode in the electrolysis of the aqueous
solution of CUSO4, using Cu - electrodes. What is used as anode in
refining of impure copper metal by the process of electrolysis? 2+1
Group
‘E'
(For
external candidates only)
5. Answer
the following questions (any four) 1x41
5.1 What
is the SI unit of calorific value of fuels?
5.2 Write
down the ideal gas equation for 1 mol gas.
5.3 From
which group to group 12 of long periodic table are the transitional elements
located?
5.4 Which
type of energy is transformed to electrical energy in a dynamo?
5.5 How
many covalent bonds are present in CHCl2 molecule?
6. Answer
the following questions (any three): 2x3
6.1 If
two conductor wires of resistances 6 ohms and 4 ohms are connected in parallel
combination, what will be the equivalent resistance of the combination?
6.2 What
is meant by the principal axis of a concave lens?
6.3 Mention
similarity of properties of hydrogen with two properties of group 17 elements
of long periodic table.
6.4 Why
fused sodium chloride can conduct electricity?