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List of top Physics Questions asked in BITSAT
Viscosity is the property of a liquid due to which it:
BITSAT - 2011
BITSAT
Physics
Viscosity
A constant torque of 31.4 N-m is exerted on a pivoted wheel. If angular acceleration of wheel is 4 rad s⁻², then the moment of inertia of the wheel is:
BITSAT - 2011
BITSAT
Physics
Rotational motion
If T = 2π √ML³3Yq, then find the dimensions of q. Where T is the time period of a bar of mass M, length L, and Young’s modulus Y.
BITSAT - 2011
BITSAT
Physics
Dimensional Analysis
An object experiences a net force and accelerates from rest to its final position in 16 s. How long would the object take to reach the same final position from rest if the object’s mass was four times larger?
BITSAT - 2011
BITSAT
Physics
laws of motion
A man of mass m starts falling towards a planet of mass M and radius R. Inside the planet, which consists of a spherical shell of mass 2M/3 and a point mass M/3 at centre, the change in gravitational force experienced by the man is:
BITSAT - 2011
BITSAT
Physics
Newtons law of gravitation
A particle is moving in a straight line with initial velocity and uniform acceleration. If the sum of the distance travelled in tᵗᵉˣᵗᵗh and (t+1)ᵗᵉˣᵗᵗh</ˢᵗʳoⁿg> seconds is 100 cm, then its velocity after t seconds, in cm/s, is:
BITSAT - 2011
BITSAT
Physics
Kinematics
The two vectors A and B are drawn from a common point and C = A + B. The angle between A and B is:
BITSAT - 2011
BITSAT
Physics
Vectors
A passenger in an open car travelling at 30 m/s throws a ball out over the bonnet. Relative to the car, the initial velocity of the ball is 20 m/s at 60^ to the horizontal. The angle of projection of the ball with respect to the horizontal road will be:
BITSAT - 2011
BITSAT
Physics
Projectile motion
A passenger in an open car travelling at
$30\, m / s$
throws a ball out over the bonnet. Relative to the car the initial velocity of the ball is
$20 m / s$
at
$60^{\circ}$
to the horizontal. The angle of projection of the ball with respect to the horizontal road will be :
BITSAT - 2011
BITSAT
Physics
Projectile motion
Which of the following is not an example of perfectly inelastic collision
BITSAT - 2011
BITSAT
Physics
work, energy and power
A steady current flow in a metallic conductor of non-uniform cross-section. The quantity/quantities remaining constant along the whole length of the conductor is/are
BITSAT - 2011
BITSAT
Physics
Current electricity
An ideal refrigerator has a freezer at a temperature of
$-13^{\circ} C$
. The coefficient of performance of the engine is
$5$
. The temperature of the air (to which heat is rejected) will be
BITSAT - 2011
BITSAT
Physics
Thermodynamics terms
Natural length of a spring is
$60 \,cm$
and its spring constant is
$4000 \,N / m$
. A mass of
$20\, kg$
is hung from it. The extension produced in the spring is
$\left(\right.$
take
$\left.g=9.8 \,m / s ^{2}\right)$
:
BITSAT - 2011
BITSAT
Physics
Conservation of energy
A cube has a side of length $1.2 \times 10^{-2} m$. Calculate its volume.
BITSAT - 2011
BITSAT
Physics
physical world
The magnitude of electric field intensity $E$, such that an electron placed in it would experience an electrical force equal to its weight, is given by
BITSAT - 2011
BITSAT
Physics
Electric Field
Fast neutrons can easily be solved down by
BITSAT - 2011
BITSAT
Physics
Nuclear physics
The linear momentum $p$ of a body moving in one dimension varies with time $t$ according to the equation $p = a + bt^2$, where $a$ and $b$ are positive constant. The net force acting on the body is
BITSAT - 2011
BITSAT
Physics
laws of motion
The force constant of a spring gun is $50 \,N / m$. If a ball of $20 \,g$ be shoot by the gun, so that its spring is compressed by $10 \,cm$, the velocity of the ball is:
BITSAT - 2011
BITSAT
Physics
Gravitation
If a new planet is discovered rotating around sun with the orbital radius double that of the earth, then what will be its time period? (in earth's days) (Take
$\sqrt{2}=1.4$
)
BITSAT - 2011
BITSAT
Physics
Keplers Laws
An electron is accelerated under a potential difference of 182 V. The maximum velocity of electron will be (Charge of electron is
$1.6 \times 10^{-19}C $
and its mass is
$9.1 \times 10^{-31}kg) $
BITSAT - 2011
BITSAT
Physics
Dual nature of matter
The velocity of efflux of a liquid through an orific in the bottom of the tank does not depend upon
BITSAT - 2011
BITSAT
Physics
Bernauli Theorem
The work done in placing a charge of
$8 \times 10^{-18} \, C$
on a capacitor of capacity
$100\, \mu F$
is
BITSAT - 2011
BITSAT
Physics
Capacitors and Capacitance
A toroidal solenoid with an air core has an average radius of
$15 \,cm$
, area if crosssection
$12\, cm ^{2}$
and
$1200$
turns. Ignoring the field variation across the cross- section of the toroid, the self-inductance of the toroid is:-
BITSAT - 2011
BITSAT
Physics
Electromagnetic induction
A point source of light is placed
$4 \,m$
below the surface of water of refractive index
$\frac{5}{3}$
. The minimum diameter of a disc, which should be placed over the source, on the surface of water to cut-off all right coming out of water is
BITSAT - 2011
BITSAT
Physics
Refraction of Light
The Poisson's ratio of a material is $0.5$. If a force is applied to a wire of this material, there is a decrease in the cross-sectional area by $4 \%$. The percentage increase in the length is:
BITSAT - 2011
BITSAT
Physics
mechanical properties of solids
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