| 1 |
When a charged particle passes through matter, it produces ionization, this effect is used in
|
A. fission reaction
B. reactor
C. radiation detector
D. fusion reaction
|
| 2 |
A toy car moves around a circular track of radius 0.3 m at the rate of 120 rev/min. The speed V of the car is:
|
A. 38 m/sec
B. 3.8 m/sec
C. 0.6 m/sec
D. None of these
|
| 3 |
In a _____ flow, each particle of the fluid is called a streamline and different streamlines ______cross each other.
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A. Streamline, cannot
B. Turbulent, cannot
C. Streamline, can
D. None of these
|
| 4 |
It is customary represent a current flowing
towards the reader by a symbol
|
A. (x)
B. (+)
C. (.)
D. (-)
|
| 5 |
The internal energy of a system does not depend upon the
|
A. initial state of the system
B. final state of the system
C. path
D. none of them
|
| 6 |
The L-C parallel circuit the capacitor draws a
|
A. leading current
B. lagging current
C. main current
D. none of these
|
| 7 |
An ideal voltmeter has:
|
A. Zero resistance
B. Small resistance
C. Large resistance
D. Infinite resistance
|
| 8 |
If one of the pipes has a much smaller diameter than the other and are placed horizontally then form both sides of Bernoulli's equation, we can drop the term
|
A. P
B. 1/2 fv2
C. pgh
D. none of them
|
| 9 |
The results of spectra obtained by Blamer were expressed in 1896 by
|
A. Bohr
B. Rydberg
C. Planck
D. Rutherford
|
| 10 |
A person standing near the track of a fast moving train has tendency to fall towards it because of
|
A. Vibration due to motion of train
B. Gravitation force of attraction between person and trains
C. The high speed of train
D. Some other effect
|
| 11 |
The solids are classified as:
|
A. Metals
B. Crystalline
C. Amorphous
D. Polymeric
|
| 12 |
The electric field lines start from
|
A. Positive charge
B. Negative charge
C. Either A or B
D. Neutron
|
| 13 |
The greatest stress that a material can endure without losing the proportionality between stress and strain is called
|
A. plastic line
B. breaking point
C. proportional limit
D. none of them
|
| 14 |
Acceleration of the mass at any instant is given by
|
A. a=k/m x
B. a= - m/k x
C. a = - k/m x
D. a=m/k x
|
| 15 |
One coulomb per second is equal to
|
A. One volt
B. One ampere
C. One hom
D. One henry
|
| 16 |
A swing has
|
A. one natural frequency
B. two natural frequencies
C. three natural frequencies
D. four natural frequencies
|
| 17 |
A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done is 25J. The angle which the force makes the direction of motion will be:
|
A. 60°
B. 90°
C. 30°
D. 0°
|
| 18 |
If a gymnast is sitting on a rotating stool with his arms outstretched, brings his arms towards the chest, then its angular velocity will:
|
A. Increase
B. Decrease
C. Remains constant
D. None of these
|
| 19 |
0.1 kg mass will be equivalent to the energy
|
A. 9 x 1015J
B. 5 x 108J
C. 6 x 1016J
D. 9 x 10-16J
|
| 20 |
An isochoric process is one which take place at
|
A. Constant internal energy
B. Constant entropy
C. Constant volume
D. Constant pressure
|
| 21 |
Which of the following can become a good permanent magnet
|
A. iron
B. steel
C. both of them
D. none of them
|
| 22 |
A man sitting in a bus travelling in a direction from west to east with a speed of 40 km/h observes that the rain drops are falling vertically down. To the another man standing on ground the rain will appear
|
A. To fall vertically down
B. To fall at an angle going from west to east
C. To fall at an angle going from east to west
D. The information given is insufficient to decide the direction of rain
|
| 23 |
Charge on neutron is
|
A. 1.6 x 10-19C
B. zero
C. -1.6 x 10-19C
D. 1.2 x 10-19C
|
| 24 |
A structure of polymeric solid is:
|
A. An ordered structure
B. A disordered structure
C. Intermediate between order and disorder
D. Any of these
|
| 25 |
the symbol to be used in relativity problems denotes:
|
A. Dilated time
B. Proper time
C. Life time
D. Half time
|
| 26 |
A dimension stands for the ___________ nature of certain physical quantity.
|
A. super
B. Quantitative
C. Qualitative
D. Both B and C
|
| 27 |
Thermocouple is an arrangement of two different metals
|
A. To convert heat energy in to electrical energy
B. To produce more heat
C. To convert heat energy into chemical energy
D. To convert electric energy in to heat energy
|
| 28 |
The positive charge moving in one direction is
equivalent in all external affects to a:
|
A. Negative charge is
moving in the same direction
B. Positive
charge is moving in the opposite direction
C. Negative charge moving
in the opposite direction
D. Positive charges moving in the same direction
|
| 29 |
The value of relative permittivity of different dielectrics are
|
A. Equal
B. Different
C. Greater than one
D. Smaller than one
|
| 30 |
When body moves along a circular path with constant speed, it has an acceleration, which is always directed;
|
A. Along the tangent
B. Towards the centre
C. Away from the centre
D. None of them
|