Friend On your Demanding here I am Providing Previous year Maharashtra Common Entrance Test Exam Papers :


A glass tube of internal diameter 3.5 cm and
thickness 0.5 cm is held vertically with its
lower end immersed in water. The downward
pull on the tube due to surface tension (S.T. of
water = 0.074 N/m) is
(A) 1.86 N (B) 1.86 × 10−1 N
(C) 1.86 × 10−2 N (D) 1.86 × 10−3 N

2. The gas equation PV
T
= constant is true for a
constant mass of an ideal gas undergoing
(A) Isothermal change
(B) Adiabatic change
(C) Isobaric change
(D) Any type of change

3. A 10 ohm resistance, 5 mH coil and 10 µF
capacitor are joined in series. When a suitable
frequency alternating current source is joined
to this combination, the circuit resonates. If
the resistance is halved, the resonance
frequency
(A) is halved.
(B) is doubled.
(C) remains unchanged.
(D) is quadrupled.

4. The buckling of a beam is found to be more if
_______.
(A) the breadth of the beam is large.
(B) the beam material has large value of
Young’s modulus.
(C) the length of the beam is small.
(D) the depth of the beam is small.

5. In AM, the centpercent modulation is
achieved when _______.
(A) carrier amplitude = signal amplitude
(B) carrier amplitude ≠ signal amplitude
(C) carrier frequency = signal frequency
(D) carrier frequency ≠ signal frequency

6. A potentiometer wire of length 100 cm has a
resistance of 10 Ω. It is connected in series
with a resistance and an accumulator of e.m.f
2 V and of negligible internal resistance. A
source of e.m.f 10 mV is balanced against a
40 cm length of the potentiometer wire. The
value of the external resistance is
(A) 395 Ω (B) 790 Ω
(C) 405 Ω (D) 810 Ω

7. For stationary waves in the medium,
(A) phase of SHM of particles at any time is
same, between two successive nodes.
(B) phase of SHM of particles increases as
path increases.
(C) the amplitude of vibration is same for
each point.
(D) phase of all points between two
successive antinodes is same.

8. To increase the range of voltmeter the series
resistance should be _______.
(A) increased (B) decreased
(C) constant (D) low

9. The moment of inertia of a sphere is 20 kg−m2
about the diameter. The moment of inertia
about any tangent is
(A) 25 kg-m2 (B) 50 kg-m2
(C) 70 kg-m2 (D) 80 kg-m2

10. The limit of resolution of 100 cm telescope for
λ = 5000 Å is approximately equal to
(A) 0.13′′ (B) 0.3′′
(C) 1′′ (D) 1.4′′

11. ‘Half-life’ of a radioactive substance accounts
for
(A) time required for complete
disintegration of radioactive substance.
(B) time required for two-third
disintegration of radioactive substance.
(C) time required for the disintegration of
half the radioactive substance.
(D) time required for one-third
disintegration of radioactive substance.


According to Huygen’s principle,
(A) each point on the wavefront is in
different phase.
(B) each point on the wavefront is centre of
a new disturbance and emits secondary
waves.
(C) the tangent to wavefront is the direction
of the propagation of the wave.
(D) the wave is transverse.

13. Gyromagnetic ratio is a ratio of magnetic
dipole moment to
(A) mass of electron.
(B) momentum of electron.
(C) radius of electron.
(D) angular momentum of electron.

14. An air column, closed at one end and open at the
other resonates with a tuning fork of frequency
ν, when its length is 45 cm, 99 cm and at two
other lengths in between these values. The
wavelength of sound in air column is
(A) 180 cm (B) 108 cm
(C) 54 cm (D) 36 cm

Due to propagation of longitudinal wave in a
medium, the following quantities also
propagate in the same direction
(A) Energy, momentum and mass
(B) Energy
(C) Energy and mass
(D) Energy and linear momentum

17. In a potentiometer experiment, a balance point
is obtained, when
(A) The e.m.f of the battery becomes equal
to the e.m.f of the experimental cell.
(B) The potential difference of the wire
between the +ve end to jockey becomes
equal to the e.m.f of the experimental cell.
(C) The potential difference of the wire
between +ve point and jockey becomes
equal to the e.m.f of the battery.
(D) The potential difference across the
potentiometer wire becomes equal to the
e.m.f of the battery.

18. A gas in an enclosure has a pressure P and the
temperature T K. Another gas enclosed in a
container of the same volume has a pressure
2P and the temperature T/2 K. The ratio of the
average kinetic energy per molecule of the two
gases is
(A) 4 : 1 (B) 2 : 1
(C) 1 : 2 (D) 1 : 4

19. Lenz’s law gives
(A) the magnitude of the induced e.m.f.
(B) the direction of the induced current.
(C) both the magnitude and direction of the
induced current.
(D) the magnitude of the induced current.

22. When a body moves with a constant speed
along a circle,
(A) no work is done on it.
(B) no acceleration is produced in the body.
(C) no force acts on the body.
(D) its velocity remains constant.

23. The graph between restoring force and time in
case of S.H.M is
(A) a straight line (B) a circle
(C) a parabola (D) a sine curve

25. According to de Broglie, wave is associated
with matter
(A) when it is stationary.
(B) when it is in motion with the velocity of
light only.
(C) when it is in motion with any velocity.
(D) none of the above

26. The moment of inertia of a body does not
depend upon
(A) the mass of the body.
(B) the distribution of the mass in the body.
(C) the axis of rotation of the body
(D) the angular velocity of the body.

27. In insulators,
(A) The valence band is partially filled with
electrons.
(B) The conduction band is partially filled
with electrons.
(C) The conduction band is filled with
electrons and valence band is empty.
(D) The conduction band is empty and
valence band is filled with electrons.


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