Class 10 Physics Past Papers MCQs Grand Practice Test

The SI unit of electric potential difference is:

Two small charged spheres are separated by 2 mm. Which of the following would produce the greatest attractive force?

The SI unit of intensity of sound is:

If turn ratio of a transformer is 100 then:

Two capacitors of 20\(\mu\)F each are connected in series with a battery of 10V. The total charge passing through the circuit is:

In Vacuum, all electromagnetic waves have the same:

The focal length of a convex lens of power
5 D is ______ cm.

Speed of sound in vacuum is:

For finding a virtual and erect image by a converging lens, object should be placed:

Waves transfer:

When a ball is gently displaced from the centre of a bowl, it starts oscillating about the centre due to:

When we double the voltage in a simple circuit, we double the:

Capacitance is defined as:

The instrument used to see the distant objects is called:

The unit of power of lens is:

Which of the following characteristics of waves is independent of others?

If speed of sound is 340 \(ms^{-1}\) at normal temperature in air we can hear the echo after:

For the diagnosis of brain tumor _______ is used.

Capacitance is defined as:

How many times speed of sound is greater in water than air?

Which of the following equations is correct for magnification?

Rainbow is formed due to:

If X=A.B, then X=1, when:

The output of a NAND gate is 0 when:

The equivalent capacitance of series capacitors is ________ the capacitance of any individual capacitor in the combination.

Which radio isotope is used for cancerous tumour?

If the mass of bob of a pendulum is increased by a factor of ‘2’ then the period of pendulum motion will:

Five joules of work is needed to shift 5C of charge from one place to another. The potential difference between the places is:

Two charged spheres are separated by 2 mm. Which of the following pairs would have the highest attractive force?

Endoscope which is used to diagnose bladder is called:

The Audible Frequency Range for human beings is from 20 Hz to:

An object is 14 cm in front of a convex mirror. The image is 5.8 cm behind the mirror. What is the focal length of the mirror?

The direction of induced e.m.f in a circuit is in accordance with conservation of:

If the length of the simple pendulum is halved its new time period ‘T’ will become:

The turn ratio of a transformer is 10. It means:

A ray of light in glass is incident on an air surface at an angle greater than the critical angle, the ray will:

NOT Gate is also called:

Which one is incorrect when three capacitors are connected in parallel?

The output of a NAND gate is zero when:

The SI unit of intensity of sound is:

When uranium (92 protons) ejects a beta particle, how many protons will be in the remaining nucleus?

What is the refractive index of Ice?

If the length of a simple pendulum is doubled, then its new frequency f' becomes:

The intensity level of mosquito buzzing is:

What is the size of Nucleus?

Which is the correct order of radiations for penetrating ability?

The intensity level of faintest audible sound in decibel is:

Image formed by a camera is:

S.I unit of spring constant “K” is:

If 5 joule of work is needed to shift the 10 coulomb charge from one place to another place then the potential between the plates will be:

Speed of light in water is approximately:

The pendulum clock was invented by:

If X=A.B, then ‘X’ is ‘1’, when:

Release of energy by the Sun is due to:

S.I unit of charge is:

The SI unit of electromotive force is:

Focal Length of Spherical Mirror is related to the Radius of Curvature by:

The loudness of a sound is most closely related to:

1 eV is equal to:

One of the isotopes of Uranium is \(^{ 236 }{ U }_{ 92 }\) . The number of neutrons in this isotope is:

In case of OR and AND operation, if switches S1 and S2 both are open then the lamp is:

According to Right Hand Rule for a current carrying conductor, current will be in the direction of:

In concave mirror, which surface is reflecting?

In Vacuum, all Electro Magnetic Waves have the same:

The index of refraction depends on:

A totally reflecting prism has one of its angle equal to 90° and the remaining two angles are equal to:

What is the frequency of second pendulum?

1 pF = ?

If we double the distance between two point charges then coulomb’s force will:

Kilowatt hour is a unit of:

Capacitance is defined as:

Waves transfer:

The process by which electrons are emitted by a hot metal surface is known as:

What is the power rating of a lamp connected to a 12 V source when it carries 2.5 A?

In vacuum, all electromagnetic waves have the same:

Kilowatt-hour is a large unit to measure:

An object is 14 cm in front of a convex mirror. The image is 5.8 cm behind the mirror. What is the focal length of the mirror?

Which one is OHMIC in nature?

One bel is equal to:

Five joules of work is needed to shift 10C charge from one place to another. The potential difference between the places is:

The magnitude of the sensation produced on the ear by a sound is called its:

What happens to the atomic number of an element which emits one alpha particle and a beta particle?

The sound energy passing per unit area per second is called:

One pico farad (PF) is equal to:

The loudness of a sound is most closely related to:

The unit of electric potential is:

Which one is not true for electric power?

The magnifying power of a simple microscope is given as:

Two resistors of 20\(\Omega \) each are connected in parallel with a battery of 10V, the total current passing through the circuit is:

If the time period of simple pendulum is one second, then its length on earth will be:

The combined resistance of two identical resistors, connected in series is 8Ω. Their combined resistance in a parallel arrangement will be:

What is the length of second’s pendulum?

The inner part of fiber optics is called:

A ray of light passing through air with speed \(3\times { 10 }^{ 8 }\quad { ms }^{ -1 }\) enters into glass of refractive index 1.52, the speed in glass will be:

The human ear can respond to the intensities ranging from:

A step-up transformer:

The half-life of Krypton is 3 minutes. Out of 100g of Krypton, how much will be after 9 minutes?

Two small charged spheres are separated by 2 mm. Which of the following would produce the greatest attractive force?

The direction of induced e.m.f in a circuit is in accordance with conservation of:

The critical angle of water will be:

House Safety Wiring is connected in:

What is the relationship between resistance and length of a conductor?

The half life of a certain isotope is 1 day. What is quantity of the isotope after 2 days?

In case of vibratory motion, time period is reciprocal of the:

Which of the following is NOT processing?

Three resistors of 2Ω each, connected in parallel are equivalent to a resistance of:

AND gate can be formed by using two:

An object is 14 cm in front of a convex mirror. The image is 5.8 cm behind the mirror. The focal length of the mirror is:

The index of refraction depends upon:

The property of sound wave that distinguishes between shrill and grave sound is:

Loudness of sound depends upon:

A converging mirror with a radius of 20cm creates a real image 30cm from the mirror. What is the object distance?

The turn ratio of a transformer is 10. It means:

The characteristics of sound by which a loud and a faint sound can be distinguished is:

During fission of 1 kg of uranium-235 _______ energy is released.

The unit of e.m.f in SI system is volt, which is equal to:

The half life of a certain isotope is 1 day. What is quantity of the isotope after 2 days?

The isotope \(^{ 1 }{ U }_{ 1 }\) contains:

The combined resistance of two identical resistors, connected in series is 8Ω. Their combined resistance in a parallel arrangement will be:

How long does it take a current of 10 mA to deliver 30 C of charge?

The half life of a certain isotope is 1 day. What is the quantity of isotope after 2 days?

Approximate speed of sound in distilled water at 25 °C is:

How is energy from the sun released?

If radius of curvature is 10 cm then focal length of convex lens is:

AND gate can be formed using two:

What is the displacement of an object in simple harmonic motion when K.E=P.E?

Capacitance is defined as:

What is the power of a lamp connected to a 12V source when it carries 2.5 A current?

The particles emitted from a hot cathode surface are called:

The direction of induced e.m.f in a circuit is determined in accordance with law of conservation of:

The presence of magnetic field can be detected by a:

The electrical power is given by:

The direction of induced e.m.f in a circuit is in accordance with conservation of:

What is the power rating of a lamp connected to a 12 V source when it carries 2.5 A current?

If F=0.08N and X=4cm then value of “K” is: