CBSE Class X – Science Physics Exam (Full Syllabus)

This test is designed based on NCERT Syllabus for Class 10 Topics of Science – Physics

Each time random 25 questions will be displaced from the question bank of 500 + Questions
So we recommend you to retake the quiz till you have mastered all the questions

1 / 25

Fleming’s Right-hand rule gives:

magnitude of the induced current.

magnitude of the magnetic field

direction of the induced current

both, direction and magnitude of the induced current

2 / 25

An electron moves with a speed v along positive direction of the x-axis. If a magnetic feld B acts along the positive y-direction, then the force on the electron will act along:

x-axis

y-axis

–ve z-direction

+ve z-direction

3 / 25

Which of the subsequent is not attracted by a magnet:

Steel

Cobalt

Brass

Nickel

4 / 25

Relative strength of magnetic field at a point in the space adjoining the magnet is shown by the:

length of magnet

thickness of magnet

degree of closeness of the field.

resistance offered by the surroundings

5 / 25

Which of the following declaration is not correct about the magnetic field?

Magnetic field lines form a continuous closed curve

Magnetic field line do not interest each other

Direction of tangent at any point on the magnetic field line curve gives the direction of magnetic field at that point.

Outside the magnet, magnetic field lines go from South to North pole of the magnet.

6 / 25

Direction of rotation of a coil in electric motor is intent by:

fleming’s right hand rule

fleming’s left hand rule

faraday law of electromagnetic inductors

None of these

7 / 25

A coil of many circular turns of wire wrapped in the shape of a cylinder

Bar magnet

solenoid

horse shoe magnet

none

8 / 25

Which of the following is not attracted by a magnet:

Steel

cobalt

nickel

brass

9 / 25

A fuse wire frequently gets burnt when used with a good heater. It is advised to use a fuse wire of

more length

less radius

less length

more radius

10 / 25

A student drives out an experiment and plots the V-I graph of three samples of nichrome wire with resistances R1 R2 and R3 respectively. Which of the following is huge?

R1 = R2 = R3

R1 > R2 > R3

R3 > R2 > R1

R2 > R3 > R1

11 / 25

When electric current is passed, electrons move from:

High potential to low potential

Do not move

Out of the conductor

Low potential to high potential

12 / 25

True test of charge is

Attraction only

Repulsion only

Both attraction and repulsion

None of the above

13 / 25

What is the maximum resistance which can be made using five resistors each of 1/5 W?

10 Ohm

1 Ohm

100 Ohm

1/5 Ohm

14 / 25

The property of a conductor to oppose the flow of charges through it.

Resistance

Reluctance

Conductance

inductance

15 / 25

The ammeter is always connected in series because

to measure the current fowing through a circuit.

to measure the voltage fowing through a circuit.

to measure the potential difference fowing through a circuit.

to measure the resistance fowing through a circuit.

16 / 25

The unit of electric power may also be expressed as

volt-ampere

kilowatt-hour

watt-second

joule second

17 / 25

An ideal ammeter is one which has

infinite resistance

zero resistance

finite resistance

no resistance

18 / 25

A clear sky appears blue, because:

blue light gets absorbed in the atmosphere

ultraviolet radiations are absorbed in the atmosphere

violet and blue lights get scattered more than the lights of all other colours by the atmosphere

lights of all other colours is scattered more than the violet and blue colour lights by the atmosphere

19 / 25

The sun appears red at sunset or sunrise. Choose the incorrect statement from the following

Light from the sun near the horizon passes through the layers of air.

Light from the sun near the horizon travels larger distance in the earth’s atmosphere before reaching our eyes. (c)

Most of the blue light and longer wavelengths are scattered away by the particles.

Most of the blue light and shorter wavelengths are scattered away by the

20 / 25

Milk is a colloid that contains globules of fat and protein. When a beam of light is directed at a glass of milk the light is scattered. That is a great example

Tyndall effect

Dispersion of light

Scattering of light

Reflection of light

21 / 25

Light which consists of only one colour or single wavelength is called Monochromatic

Single chromatic

Dichromatic

Monochromatic

none

22 / 25

The sky appears black to an astronaut

Because there is no refraction

Because there is no reflection

Because there is no scattering light

none

23 / 25

The SI unit of Power of a lens is

Hertz

Dipotre

newton

none

24 / 25

The emergent ray in a prism bend at an angle to the direction of the

incident ray

refracting ray

reflecting ray

none

25 / 25

The refractive index of glass is largest for

violet color

red color

blue color

white color

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CBSE Class X – Science Physics Exam (Full Syllabus)

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