Class 10 Physics Grand MCQs Tests Reduced Syllabus

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 loudness of a sound is most closely related to:

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

Waves transfer:

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

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

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

The SI unit of intensity of sound is:

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

What is the size of Nucleus?

Kilowatt hour is a unit of:

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

If X=A.B, then ‘X’ is ‘1’, when:

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

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:

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

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

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

For the diagnosis of brain tumor _______ is used.

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

The unit of power of lens is:

AND gate can be formed using two:

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

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

The human ear can respond to the intensities ranging from:

Which of the following equations is correct for magnification?

The SI unit of electric potential difference is:

Loudness of sound depends upon:

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

Kilowatt-hour is a large unit to measure:

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

How is energy from the sun released?

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

The loudness of a sound is most closely related to:

What is the frequency of second pendulum?

In Vacuum, all Electro Magnetic Waves have the same:

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

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

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?

1 pF = ?

Capacitance is defined as:

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

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:

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

The electrical power is given by:

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

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

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

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

The intensity level of mosquito buzzing is:

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

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

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

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

The output of a NAND gate is 0 when:

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?

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

The critical angle of water will be:

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

Which is the correct order of radiations for penetrating ability?

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

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

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

Waves transfer:

The pendulum clock was invented by:

The SI unit of intensity of sound is:

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

The isotope ^{ 1 }{ U }_{ 1 } contains:

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

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

A step-up transformer:

In Vacuum, all electromagnetic waves have the same:

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 incorrect when three capacitors are connected in parallel?

The unit of electric potential is:

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

In vacuum, all electromagnetic waves have the same:

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

The inner part of fiber optics is called:

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

Rainbow is formed due to:

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

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

The index of refraction depends upon:

NOT Gate is also called:

One pico farad (PF) is equal to:

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

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

Capacitance is defined as:

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

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

The index of refraction depends on:

S.I unit of charge is:

In concave mirror, which surface is reflecting?

AND gate can be formed by using two:

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

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

Which one is not true for electric power?

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

Speed of sound in vacuum is:

Which one is OHMIC in nature?

The SI unit of electromotive force is:

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

Capacitance is defined as:

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 zero when:

What is the length of second’s pendulum?

If turn ratio of a transformer is 100 then:

The intensity level of faintest audible sound in decibel is:

Speed of light in water is approximately:

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

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

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

Which radio isotope is used for cancerous tumour?

Release of energy by the Sun is due to:

The particles emitted from a hot cathode surface are called:

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

Capacitance is defined as:

S.I unit of spring constant “K” is:

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

One bel is equal to:

The presence of magnetic field can be detected by a:

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