BITSAT Physics Previous Year Questions with Solutions

1

Find the average value of current shown graphically from t=0 to t=2 ~s .

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2

In an ac circuit, an inductor, a capacitor and a resistor are connected in series with X_L=R= X _ C . Impedance of this circuit is :

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3

An alternating voltage V(t)=220 100 t volt is applied to a purely resistive load of 50 . The time taken for the current to rise from half of the peak value to the peak value is:

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4

Which of the following transitions of He ⁺ ion will give rise to spectral line which has same wavelength as the spectral line in hydrogen atom?

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5

The ratio of the shortest wavelength of Balmer series to the shortest wavelength of Lyman series for hydrogen atom is:

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6

The minimum excitation energy of an electron revolving in the first orbit of hydrogen is

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7

A parallel plate capacitor with plate area A and plate separation d=2 ~m has a capacitance of 4 ~F . The new capacitance of the system if half of the space between them is filled w

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8

A capacitor of capacitance C is charged to a potential V. The flux of the electric field through a closed surface enclosing the positive plate of the capacitor is:

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9

The work done in placing a charge of 8 10⁻¹⁸ coulomb on a condenser of capacity 100 microfarad is

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10

A ball falling freely from a height of 4.9 ~m / s , hits a horizontal surface. If e= 3 4 , then the ball will hit the surface, second time after

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11

Two bodies of mass 1 kg and 3 kg have position vectors i +2 j +k and -3 i -2 j + k respectively. The magnitude of position vector of centre of mass of this system will be similar t

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12

Two bodies are having kinetic energies in the ratio 16: 9 . If they have same linear momentum, the ratio of their masses respectively is:

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13

In the given circuit, E₁=E₂=E₃=2 ~V and R₁=R₂=4 , then current flowing through the branch A B is

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14

In the following circuit diagram, when 3 resistor is removed, then equivalent resistance of the network

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15

A conducting wire is stretched by applying a deforming force, so that its diameter decreases to 40 % of original value. The percentage change in its resistance will be

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16

Which figure shows the correct variation of applied potential difference (V) with photoelectric current (I) at two different intensities of light ( I ₁ I ₂ ) of same wavelengths:

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17

The acceptor level of a p-type semiconductor is 6 eV . The maximum wavelength of light which can create a hole would be : Given hc =1242 eV nm .

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18

When light is incident on a metal surface the maximum kinetic energy of emitted electrons

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19

Inside a solenoid of radius 0.5 m , magnetic field is changing at a rate of 50 10⁻⁶ ~T / s . Acceleration of an electron placed at a distance of 0.3 m from axis of solenoid will be

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20

There are two long co-axial solenoids of same length l . The inner and outer coils have radii r₁ and r₂ and number of turns per unit length n₁ and n₂ , respectively. The ratio of m

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21

A rectangular loop of length 2.5 m and width 2 m is placed at 60^ to a magnetic field of 4 T . The loop is removed from the field in 10 sec . The average emf induced in the loop du

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22

A parallel plate capacitor consists of two circular plates of radius R=0.1 ~m . They are separated by a short distance. If electric field between the capacitor plates changes as d

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23

Electromagnetic waves travel in a medium with speed of 1.5 10^8 ~ms ⁻¹ . The relative permeability of the medium is 2.0 . The relative permittivity will be :

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24

If E and K represent electric field and propagation vectors of the EM waves in vacuum, then magnetic field vector is given by: ( - angular frequency) :

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25

An oil drop of radius 1 ~m is held stationary under a constant electric field of 3.65 10^4 ~N / C due to some excess electrons presence on it. If the density of oil drop is 1.26 ~g

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26

The potential of a large liquid drop when eight liquid drops are combined is 20 V , then the potential of each single drop was

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27

A dust particle of mass 4 10⁻¹² mg in suspended in air under the influence of an electric field of 50 ~N / C directed vertically upwards. How many electrons were removed from the n

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28

One main scale division of a vernier caliper is equal to m units. If m ^ th division of main scale coincides with (n+1)^ th division of vernier scale, the least count of the vernie

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29

In the shown arrangement of the experiment of the meter bridge if A C corresponding to null deflection of galvanometer is x , what would be its value if the radius of the wire AB i

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30

Which of the following is most accurate?

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31

A body which is initially at rest at a height R above the surface of the Earth of radius R, falls freely towards the Earth, then its velocity on reaching the surface of the Earth i

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32

The distance between Sun and Earth is R . The duration of year if the distance between Sun and Earth becomes 3 R will be:

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33

For a particle inside a uniform spherical shell, the gravitational force on the particle is

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34

In a mixture of gases, the average number of degree of freedoms per molecule is 6 . The rms speed of the molecule of the gas is c , then the velocity of sound in the gas is

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35

The temperature of an ideal gas is increased from 200 K to 800 K . If r.m.s. speed of gas at 200 K is v₀ . Then, r.m.s. speed of the gas at 800 K will be:

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36

Two vessels A and B are of the same size and are at same temperature. A contains 1 g of hydrogen and B contains 1 g of oxygen. P _ A and P_B are the pressures of the gases in A and

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37

A light string passing over a smooth light pulley connects two blocks of masses m ₁ and m ₂ (where m₂ m₁ ). If the acceleration of the system is g 2 , then the ratio of the masses

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38

A block of mass 1 kg is pushed up a surface inclined to horizontal at an angle of 60^ by a force of 10 N parallel to the inclined surface as shown in figure. When the block is push

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39

A person of mass 60 kg is inside a lift of mass 940 kg and presses the button on control panel. The lift starts moving upwards with an acceleration 1.0 ~m / s ^2 . If g =10 ~ms ⁻²

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40

The straight wire A B carries a current I . The ends of the wire subtend angles ₁ and ₂ at the point P as shown in figure. The magnetic field at the point P is

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BITSAT Physics PYQs with solutions

Current Electricity

Electrostatics

Magnetic Effects of Current

Laws of Motion

Thermodynamics

Oscillations

Ray Optics

Waves and Sound

Dual Nature of Matter

Semiconductors

Mechanical Properties of Fluids

Motion in Two Dimensions

Wave Optics

Gravitation

Rotational Motion

Electromagnetic Induction

Alternating Current

Mechanical Properties of Solids

Atomic Physics

Capacitance

Kinetic Theory of Gases

Motion in One Dimension

Nuclear Physics

Work, Power and Energy

Thermal Properties of Matter

Units and Dimensions

Center of Mass, Momentum and Collision

Electromagnetic Waves

Mathematics in Physics

Magnetic Properties of Matter

Experimental Physics

Find the average value of current shown graphically from t=0 to t=2 ~s .

In an ac circuit, an inductor, a capacitor and a resistor are connected in series with X_L=R= X _ C . Impedance of this circuit is :

An alternating voltage V(t)=220 100 t volt is applied to a purely resistive load of 50 . The time taken for the current to rise from half of the peak value to the peak value is:

Which of the following transitions of He ⁺ ion will give rise to spectral line which has same wavelength as the spectral line in hydrogen atom?

The ratio of the shortest wavelength of Balmer series to the shortest wavelength of Lyman series for hydrogen atom is:

The minimum excitation energy of an electron revolving in the first orbit of hydrogen is

A parallel plate capacitor with plate area A and plate separation d=2 ~m has a capacitance of 4 ~F . The new capacitance of the system if half of the space between them is filled w

A capacitor of capacitance C is charged to a potential V. The flux of the electric field through a closed surface enclosing the positive plate of the capacitor is:

The work done in placing a charge of 8 10⁻¹⁸ coulomb on a condenser of capacity 100 microfarad is

A ball falling freely from a height of 4.9 ~m / s , hits a horizontal surface. If e= 3 4 , then the ball will hit the surface, second time after

Two bodies of mass 1 kg and 3 kg have position vectors i +2 j +k and -3 i -2 j + k respectively. The magnitude of position vector of centre of mass of this system will be similar t

Two bodies are having kinetic energies in the ratio 16: 9 . If they have same linear momentum, the ratio of their masses respectively is:

In the given circuit, E₁=E₂=E₃=2 ~V and R₁=R₂=4 , then current flowing through the branch A B is

In the following circuit diagram, when 3 resistor is removed, then equivalent resistance of the network

A conducting wire is stretched by applying a deforming force, so that its diameter decreases to 40 % of original value. The percentage change in its resistance will be

Which figure shows the correct variation of applied potential difference (V) with photoelectric current (I) at two different intensities of light ( I ₁ I ₂ ) of same wavelengths:

The acceptor level of a p-type semiconductor is 6 eV . The maximum wavelength of light which can create a hole would be : Given hc =1242 eV nm .

When light is incident on a metal surface the maximum kinetic energy of emitted electrons

Inside a solenoid of radius 0.5 m , magnetic field is changing at a rate of 50 10⁻⁶ ~T / s . Acceleration of an electron placed at a distance of 0.3 m from axis of solenoid will be

There are two long co-axial solenoids of same length l . The inner and outer coils have radii r₁ and r₂ and number of turns per unit length n₁ and n₂ , respectively. The ratio of m

A rectangular loop of length 2.5 m and width 2 m is placed at 60^ to a magnetic field of 4 T . The loop is removed from the field in 10 sec . The average emf induced in the loop du

A parallel plate capacitor consists of two circular plates of radius R=0.1 ~m . They are separated by a short distance. If electric field between the capacitor plates changes as d

Electromagnetic waves travel in a medium with speed of 1.5 10^8 ~ms ⁻¹ . The relative permeability of the medium is 2.0 . The relative permittivity will be :

If E and K represent electric field and propagation vectors of the EM waves in vacuum, then magnetic field vector is given by: ( - angular frequency) :

An oil drop of radius 1 ~m is held stationary under a constant electric field of 3.65 10^4 ~N / C due to some excess electrons presence on it. If the density of oil drop is 1.26 ~g

The potential of a large liquid drop when eight liquid drops are combined is 20 V , then the potential of each single drop was

A dust particle of mass 4 10⁻¹² mg in suspended in air under the influence of an electric field of 50 ~N / C directed vertically upwards. How many electrons were removed from the n

One main scale division of a vernier caliper is equal to m units. If m ^ th division of main scale coincides with (n+1)^ th division of vernier scale, the least count of the vernie

In the shown arrangement of the experiment of the meter bridge if A C corresponding to null deflection of galvanometer is x , what would be its value if the radius of the wire AB i

Which of the following is most accurate?

A body which is initially at rest at a height R above the surface of the Earth of radius R, falls freely towards the Earth, then its velocity on reaching the surface of the Earth i

The distance between Sun and Earth is R . The duration of year if the distance between Sun and Earth becomes 3 R will be:

For a particle inside a uniform spherical shell, the gravitational force on the particle is

In a mixture of gases, the average number of degree of freedoms per molecule is 6 . The rms speed of the molecule of the gas is c , then the velocity of sound in the gas is

The temperature of an ideal gas is increased from 200 K to 800 K . If r.m.s. speed of gas at 200 K is v₀ . Then, r.m.s. speed of the gas at 800 K will be:

Two vessels A and B are of the same size and are at same temperature. A contains 1 g of hydrogen and B contains 1 g of oxygen. P _ A and P_B are the pressures of the gases in A and

A light string passing over a smooth light pulley connects two blocks of masses m ₁ and m ₂ (where m₂ m₁ ). If the acceleration of the system is g 2 , then the ratio of the masses

A block of mass 1 kg is pushed up a surface inclined to horizontal at an angle of 60^ by a force of 10 N parallel to the inclined surface as shown in figure. When the block is push

A person of mass 60 kg is inside a lift of mass 940 kg and presses the button on control panel. The lift starts moving upwards with an acceleration 1.0 ~m / s ^2 . If g =10 ~ms ⁻²

The straight wire A B carries a current I . The ends of the wire subtend angles ₁ and ₂ at the point P as shown in figure. The magnetic field at the point P is