Physics - Online Test
Q1. An
ideal gas is taken from (Pi,Vi) to (Pf,Vf)
in three different ways. Identify the process in which the work done on the gas
the most.
Answer : Option B
Explaination / Solution:
No Explaination.
Q2. If the temperature and pressure of a gas is doubled the mean free path of the gas molecules
Answer : Option A
Explaination / Solution:
No Explaination.
Q3. An
ideal spring of spring constant k, is
suspended from the ceiling of a room and a block of mass M is fastened to its lower end. If the block is released when the
spring is un-stretched, then the maximum extension in the spring is
Answer : Option C
Explaination / Solution:
No Explaination.
Q4. The
displacement y of a wave travelling
in the x direction is given by y =
(2x10-3) sin(300t-2x+π/4), where x
and y are measured in metres and t in
second. The speed of the wave is
Answer : Option A
Explaination / Solution:
No Explaination.
Q5. The velocity of a particle v at an instant t is
given by v=at+bt2. The dimensions of b is
Answer : Option D
Explaination / Solution:
No Explaination.
Q6. If one object is dropped vertically downward and another object is thrown horizontally from the same height, then the ratio of vertical distance covered by both objects at any instant t is
Answer : Option A
Explaination / Solution:
No Explaination.
Q7. An object of mass m begins to move on the plane
inclined at an angle θ. The coefficient of static friction of inclined surface
is μs. The maximum static friction experienced by the mass is
Answer : Option D
Explaination / Solution:
No Explaination.
Q8. If the linear momentum of the object is increased by 0.1%, then the kinetic energy is increased by
Answer : Option B
Explaination / Solution:
No Explaination.
Q9. Two discs of same moment of inertia rotating
about their regular axis passing through center and perpendicular to the plane
of disc with angular velocities ω1 and ω2. They are
brought in to contact face to face coinciding the axis of rotation. The
expression for loss of energy during this process is,
Answer : Option A
Explaination / Solution:
No Explaination.
Q10. If the mass and radius of the Earth are both doubled, then the acceleration due to gravity g'
Answer : Option B
Explaination / Solution:
No Explaination.
