Class 10 Physics Past Papers MCQs Grand Practice Test

Loudness of sound depends upon:

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

The instrument used to see the distant objects is called:

The presence of magnetic field can be detected by a:

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

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

In vacuum, all electromagnetic waves have the same:

A step-up transformer:

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

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

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

Endoscope which is used to diagnose bladder is called:

Kilowatt hour is a unit of:

One pico farad (PF) is equal to:

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

What is the frequency of second pendulum?

Capacitance is defined as:

The unit of power of lens is:

The electrical power is given by:

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

Which of the following is NOT processing?

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

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

One bel is equal to:

Capacitance is defined as:

The output of a NAND gate is zero when:

Waves transfer:

House Safety Wiring is connected in:

AND gate can be formed by using two:

The SI unit of electric potential difference is:

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

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

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

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

Which one is OHMIC in nature?

If turn ratio of a transformer is 100 then:

Speed of light in water is approximately:

Waves transfer:

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

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

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

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

The intensity level of mosquito buzzing is:

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

The SI unit of intensity of sound is:

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

What is the size of Nucleus?

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

Rainbow is formed due to:

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

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

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

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

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

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

The magnifying power of a simple microscope is given as:

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

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

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

Which radio isotope is used for cancerous tumour?

Release of energy by the Sun is due to:

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

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

Image formed by a camera is:

1 pF = ?

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

If X=A.B, then ‘X’ is ‘1’, when:

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

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?

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

Capacitance is defined as:

The unit of electric potential is:

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

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

The particles emitted from a hot cathode surface are called:

In Vacuum, all Electro Magnetic Waves have the same:

The SI unit of intensity of sound is:

The intensity level of faintest audible sound in decibel is:

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

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

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

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

The inner part of fiber optics is called:

The output of a NAND gate is 0 when:

Kilowatt-hour is a large unit to measure:

1 eV is equal to:

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

The unit of e.m.f in SI system is volt, which is equal 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 pendulum clock was invented by:

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

The human ear can respond to the intensities ranging from:

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

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

The index of refraction depends on:

How is energy from the sun released?

The loudness of a sound is most closely related to:

The index of refraction depends upon:

Capacitance is defined as:

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

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?

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

NOT Gate is also called:

The critical angle of water will be:

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:

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

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:

AND gate can be formed using two:

The SI unit of electromotive force is:

S.I unit of charge is:

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

In concave mirror, which surface is reflecting?

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

What is the refractive index of Ice?

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

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

Which of the following equations is correct for magnification?

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:

For the diagnosis of brain tumor _______ is used.

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

What is the length of second’s pendulum?

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

Which is the correct order of radiations for penetrating ability?

The loudness of a sound is most closely related to:

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

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

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

S.I unit of spring constant “K” is:

Which one is not true for electric power?

Speed of sound in vacuum is: