Class 10 Physics Grand MCQs Tests Reduced Syllabus

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

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

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:

How is energy from the sun released?

Which of the following equations is correct for magnification?

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

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

If X=A.B, then ‘X’ is ‘1’, when:

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

The human ear can respond to the intensities ranging from:

The intensity level of mosquito buzzing is:

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?

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

Which is the correct order of radiations for penetrating ability?

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

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

What is the size of Nucleus?

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

Loudness of sound depends upon:

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:

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

The electrical power is given by:

Capacitance is defined as:

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

The critical angle of water will be:

What is the frequency of second pendulum?

The SI unit of electric potential difference is:

The loudness of a sound is most closely related to:

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

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

1 pF = ?

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

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

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

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

For the diagnosis of brain tumor _______ is used.

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

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

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

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

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

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:

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

Kilowatt hour is a unit of:

Waves transfer:

The unit of power of lens is:

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:

In Vacuum, all Electro Magnetic Waves have the same:

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

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

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

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

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

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

The loudness of a sound is most closely related to:

AND gate can be formed using two:

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

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

The SI unit of intensity of sound is:

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

The output of a NAND gate is 0 when:

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

The SI unit of electromotive force is:

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

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

In Vacuum, all electromagnetic waves have the same:

If turn ratio of a transformer is 100 then:

The inner part of fiber optics is called:

Which one is OHMIC in nature?

Which one is not true for electric power?

One pico farad (PF) is equal to:

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

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

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

The unit of electric potential is:

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

The pendulum clock was invented by:

The index of refraction depends upon:

S.I unit of spring constant “K” is:

The index of refraction depends on:

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

AND gate can be formed by using two:

One bel is equal to:

What is the length of second’s pendulum?

NOT Gate is also called:

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

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 output of a NAND gate is zero when:

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

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

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

Capacitance is defined as:

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

S.I unit of charge is:

The presence of magnetic field can be detected by a:

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

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:

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

A step-up transformer:

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

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

Waves transfer:

The intensity level of faintest audible sound in decibel is:

The particles emitted from a hot cathode surface are called:

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

Which radio isotope is used for cancerous tumour?

Speed of sound in vacuum is:

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

Speed of light in water is approximately:

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

Rainbow is formed due to:

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

In concave mirror, which surface is reflecting?

The SI unit of intensity of sound is:

Release of energy by the Sun is due to:

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

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

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

Capacitance is defined as:

In vacuum, all electromagnetic waves have the same:

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

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

Capacitance is defined as: