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Physics Mock Test- 2 - Class 10 MCQ

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30 Questions MCQ Test - Physics Mock Test- 2

Physics Mock Test- 2 for Class 10 2025 is part of Class 10 preparation. The Physics Mock Test- 2 questions and answers have been prepared according to the Class 10 exam syllabus.The Physics Mock Test- 2 MCQs are made for Class 10 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Physics Mock Test- 2 below.

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Physics Mock Test- 2 - Question 1

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The space around a charge in which its effect can be felt is called its

A.
Potential
B.
Electric field
C.
Field intensity
D.
Potential difference.

Detailed Solution for Physics Mock Test- 2 - Question 1

The electric field is the region around a charged particle where the lines of force can be felt by another charge by getting repulsed or attracted as per their sign of charges.

Physics Mock Test- 2 - Question 2

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The force acting on a unit positive test charge at a point inside an electric field is called

A.
Potential
B.
Field
C.
Field intensity
D.
Potential difference.

Detailed Solution for Physics Mock Test- 2 - Question 2

Electric Field Intensity (E): The electrostatic force acting per unit positive charge on a point in an electric field is called electric field intensity at that point.

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Physics Mock Test- 2 - Question 3

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Work done in moving a unit positive test charge from infinity to a point inside an electric field, is called

A.
Electric potential
B.
Field
C.
Field intensity
D.
Potential difference.

Detailed Solution for Physics Mock Test- 2 - Question 3

Electric potential: An electric potential is defined as the amount of electric potential energy that a unitary point electric charge would have if located at any point of space.
It is equal to the work done by an electric field in carrying a unit positive charge from infinity to that point.

Physics Mock Test- 2 - Question 4

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Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion : For observing traffic at back, the driver mirror is convex mirror.

Reason : A convex mirror has much larger field of view than a plane mirror.

A. Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
B. Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
C. Assertion (A) is true but reason (R) is false.
D. Assertion (A) is false but reason (R) is true.
E. Both Assertion and Reason are false.

Detailed Solution for Physics Mock Test- 2 - Question 4

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

Physics Mock Test- 2 - Question 5

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Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion : When the object moves with a velocity 2 m/s, its image in the plane mirror moves with a velocity of 4 m/s.

Reason : The image formed by a plane mirror is as far behind the mirror as the object is in front of it.

A. Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
B. Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
C. Assertion (A) is true but reason (R) is false.
D. Assertion (A) is false but reason (R) is true.
E. Both Assertion and Reason are false.

Detailed Solution for Physics Mock Test- 2 - Question 5

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

Physics Mock Test- 2 - Question 6

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Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion : The small object, to be seen in a microscope, is kept within the two foci of its objective.

Reason : In this case, the image formed by the objective is nearer to the eyepiece.

A. Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
B. Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
C. Assertion (A) is true but reason (R) is false.
D. Assertion (A) is false but reason (R) is true.
E. Both Assertion and Reason are false.

Detailed Solution for Physics Mock Test- 2 - Question 6

Assertion (A) is true but reason (R) is false. Object is placed between F and 2F of objective lens.

Physics Mock Test- 2 - Question 7

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If the current passing through a heater is halved, then the heat produced by it becomes

A.
H/2
B.
4H
C.
H/4
D.
2H

Detailed Solution for Physics Mock Test- 2 - Question 7

If the current passing through an electric heater has been halved then the heat produced will also be reduced to one fourth because H=I² RT.

Physics Mock Test- 2 - Question 8

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An electric bulb is marked 18watt-240 volt. If it is used across 240 V power line for one hour daily, calculate the number of days to consume 1 unit of electric energy.

A.
54.5 days
B.
57.5 days
C.
50.5 days
D.
55.5 days

Detailed Solution for Physics Mock Test- 2 - Question 8

Let n be the number of days

Here, work done is 36 x 10⁵ J = (18 J/s) x n x 1 x 60 x 60

Thus, n = 55.5 days

Physics Mock Test- 2 - Question 9

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Two bulbs marked 200 watt-250 volts and 100 watt-250 volts are joined in series to 250 volts supply. Power consumed in circuit is

A.
67 watt
B.
100 watt
C.
300 watt
D.
33 watt

Detailed Solution for Physics Mock Test- 2 - Question 9

We know that, R = V² /P

Hence resistance of 1st bulb = (250)² / 200 = 625/2

resistance of 2nd bulb = (250)² / 100 = 625

Total resistance of the circuit when the bulbs are connceted in series = 625/2 + 625 = 1875/2 ohm

Therefore, total power consumed in the circuit , P = (250)² / (1875/2) = 67 watt

Physics Mock Test- 2 - Question 10

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Direction of induced current produced by motion of a conductor in a magnetic field is given by

A.
Fleming's right hand rule
B.
Fleming's left hand rule
C.
Lenz's rule
D.
Faraday's rule

Detailed Solution for Physics Mock Test- 2 - Question 10

In an electric generator mechanical energy is used to rotate a conductor in a magnetic field to produce electricity. Fleming's right hand rule is used where motion and magnetic field is given and the current is induced.

Physics Mock Test- 2 - Question 11

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The bluish colour of water in deep sea is due to

A.
the presence of algae and other plants found in water
B.
reflection of sky in water
C.
scattering of light
D.
absorption of light by the sea

Detailed Solution for Physics Mock Test- 2 - Question 11

The fine water molecules mainly scatter blue light due to its shorter wavelength.

Physics Mock Test- 2 - Question 12

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Eye lens form the image of an object situated in front of it at the retina. The image formed is

A.
virtual, erect and magnified
B.
virtual, inverted and diminished
C.
real, erect and diminished
D.
real, inverted and diminished

Detailed Solution for Physics Mock Test- 2 - Question 12

The image of an object situated in front of eye is formed on the retina. The image formed is a real, inverted and diminished image

Physics Mock Test- 2 - Question 13

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In domestic electric circuits, fuse must be placed in series with

A.
Earth wire
B.
Neutral wire
C.
Live wire
D.
Any of the three wires

Detailed Solution for Physics Mock Test- 2 - Question 13

The fuse wire is always connected in the live wire of the circuit because if the fuse is put in the neutral wire, then due to excessive flow of current when the fuse burns, current stops flowing in the circuit, but the appliance remains connected to the high potential point of supply through the live wire .

Physics Mock Test- 2 - Question 14

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Electric and main switch is contained in a main board fitted usually

A.
At street electric pole
B.
At main gate of building
C.
In varandah or poarch
D.
In bed or study room

Detailed Solution for Physics Mock Test- 2 - Question 14

Electric and main switch is contained in a main board fitted usually in varandah or poarch . Because it will be safe there.

Physics Mock Test- 2 - Question 15

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Which lens always forms a virtual image ?

A.
Concave lens
B.
Convex lens
C.
Converging lens
D.
Both convex and concave

Detailed Solution for Physics Mock Test- 2 - Question 15

Convex (converging) lenses can form either real or virtual images (cases 1 and 2, respectively), whereas concave (diverging) lenses can form only virtual images (always case 3). Real images are always inverted, but they can be either larger or smaller than the object.

Image Formation by Lenses | Physics

Physics Mock Test- 2 - Question 16

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In a convex lens, where is the image formed, when an object is placed at 2F ?

A.
Between F and 2F
B.
At focus (F)
C.
At 2F on the other side
D.
At 2F on the same side

Detailed Solution for Physics Mock Test- 2 - Question 16

At the 2F point, the object distance equals the image distance and the object height equals the image height. As the object distance approaches one focal length, the image distance and image height approaches infinity.

Physics Mock Test- 2 - Question 17

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In parallel combination, total resistance

A.
Decreases
B.
Increases
C.
May decrease or increase according to the situation
D.
No particular observation.

Detailed Solution for Physics Mock Test- 2 - Question 17

To find the total resistance of all components, the reciprocals of the resistances of each component are added and the reciprocal of the sum is taken.

Thus, the Total resistance will always be less than the value of the smallest resistance.

Physics Mock Test- 2 - Question 18

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In series combination, resistance increases due to increase in

A.
Temperature
B.
Humidity
C.
Length
D.
Area of cross-section.

Detailed Solution for Physics Mock Test- 2 - Question 18

where,
R = resistance,
ρ = resistivity,
ℓ = length,
A = area of cross-section

From the above relation: R ∝ ℓ
⇒ resistance increases due to an increase in length
Because the electrons have suffered greater collisions with atoms in the material.

Physics Mock Test- 2 - Question 19

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A person suffering from myopia cannot see clearly beyond 1 m. What should be the focal length of the concave lens that will correct his vision?

A.
-2 m
B.
-0.5 m
C.
-4 m
D.
-1 m

Detailed Solution for Physics Mock Test- 2 - Question 19

The focal length of the concave lens should be -1 m as object at infinity forms image at focus.

Physics Mock Test- 2 - Question 20

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Cataract can be cured by

A.
Bi-focal Lens
B.
Convex Lens
C.
Surgery
D.
Concave lens

Detailed Solution for Physics Mock Test- 2 - Question 20

Surgery to treat cataracts involves removing the clouded lens and replacing it with a synthetic new one. This procedure is safe and very effective.They're researching eye drops that may dissolve cataracts so patients don't have to go to surgery.

Physics Mock Test- 2 - Question 21

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A person is suffering from both defects of vision, myopia and hypermetropia. He should use:

A.
concave lens
B.
no corrective lens
C.
bi-focal lens
D.
convex lens

Detailed Solution for Physics Mock Test- 2 - Question 21

Bifocal lenses are the lenses which are used for the people who suffer from both defects of vision that are hypermetropia and myopia, for those people who suffer from presbyopia or astigmatism. These lenses have two distinct powers and hence they serve two functions :- one is for distant vision and the other is for near vision. The lenses are divided into two parts. The upper part consists of concave lens which serves for distant vision at the lower part consists of convex lens which serves for near vision.

Physics Mock Test- 2 - Question 22

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Where should an object be placed in front of a convex lens to get a real image of the size of the object ?

A.
At infinity
B.
At twice the focal length
C.
Between the optical centre of the lens and its principal focus.
D.
At the principal focus of the lens

Detailed Solution for Physics Mock Test- 2 - Question 22

At twice the focal length the image formed by convex lens is real and of the same size as object.

Physics Mock Test- 2 - Question 23

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A prism ABC (with BC as base) is placed in different orientations. A narrow beam of white light is incident on the prism as shown in figure. In which of the following cases, after dispersion, the third colour from the top corresponds to the colour of the sky?

Detailed Solution for Physics Mock Test- 2 - Question 23

In figure (a) base BC of the prism is at the bottom, then violet colour lies at the bottom but in figure (b), the base BC is at the top, then violet would be at the top after dispersion, and third colour would be blue.

Physics Mock Test- 2 - Question 24

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A girl can see distant objects clearly but cannot see an object situated close to her eye. She is suffering with

A.
myopia
B.
hypermetropia
C.
astigmatism
D.
presbyopia

Detailed Solution for Physics Mock Test- 2 - Question 24

A girl who can see distant objects clearly but is unable to see clearly the objects situated close to her eye, is suffering from hypermetropia or long-sightedness defect.

Physics Mock Test- 2 - Question 25

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In an atom, particle having a positive charge is called

A.
Neutron
B.
Proton
C.
Electron
D.
Ion.

Detailed Solution for Physics Mock Test- 2 - Question 25

A positively charged subatomic particle that is housed within the nucleus is caled Proton.

Physics Mock Test- 2 - Question 26

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In an atom, particle having a negative charge, is called

A.
Neutron
B.
Proton
C.
Electron
D.
Ion.

Detailed Solution for Physics Mock Test- 2 - Question 26

A negatively charged subatomic particle that has negligible mass and moves around in a cloud around the nucleus is called Electron.

Physics Mock Test- 2 - Question 27

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Substances whose atoms have more free electrons, are called

A.
Electrolytes
B.
Conductors
C.
Insulators
D.
Semiconductors.

Detailed Solution for Physics Mock Test- 2 - Question 27

Materials with high electron mobility (many free electrons) are called conductors, while materials with low electron mobility (few or no free electrons) are called insulators.

Physics Mock Test- 2 - Question 28

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Read the following passage and answer the questions:

A solenoid is a long helical coil of wire through which a current is run in order to create a magnetic field. The magnetic field of the solenoid is the superposition of the fields due to the current through each coil. It is nearly uniform inside the solenoid and close to zero outside and is similar to the field of a bar magnet having a north pole at one

end and a south pole at the other depending upon the direction of current flow. The magnetic field produced in the solenoid is dependent on a few factors such as, the current in the coil, number of turns per unit length etc.

The following graph is obtained by a researcher while doing an experiment to see the variation of the magnetic field with respect to the current in the solenoid.

The unit of magnetic field as given in the graph attached is in mili-Tesla (mT) and the current is given in Ampere.

After analysing the graph a student writes the following statements.

(I) The magnetic field produced by the solenoid is inversely proportional to the current.

(II) The magnetic field produced by the solenoid is directly proportional to the current.

(III) The magnetic field produced by the solenoid is directly proportional to the square of the current.

(IV) The magnetic field produced by the solenoid is independent of the current.

Choose from the following which of the following would be the correct statement(s).

A. Only IV
B. I and III and IV
C. I and II
D. Only II

Detailed Solution for Physics Mock Test- 2 - Question 28

Magnetic field inside a solenoid is given by

B = μ₀nI

therefore, B ∝ I

Physics Mock Test- 2 - Question 29

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Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion (A): Refractive index of glass with respect to air is different for red light and violet light.

Reason (R): Refractive index of a pair of media depends on the wavelength of light used.

A. Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
B. Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
C. Assertion (A) is true but reason (R) is false.
D. Assertion (A) is false but reason (R) is true.

Detailed Solution for Physics Mock Test- 2 - Question 29

Refractive index of any pair of media is inversely proportional to wavelength of light. Hence,

where, λv and λr are the wavelengths of violet and red light. μ_v and μ_r are refractive index of violet and red light.

Physics Mock Test- 2 - Question 30

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Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion : Keeping a point object fixed, if a plane mirror is moved, the image will also move.

Reason : In case of a plane mirror, distance of object and Its image is equal from any point on the mirror.

A. Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
B. Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
C. Assertion (A) is true but reason (R) is false.
D. Assertion (A) is false but reason (R) is true.
E. Both Assertion and Reason are false.

Detailed Solution for Physics Mock Test- 2 - Question 30

Assertion (A) is false but reason (R) is true.

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