| 1 |
When the bob of simple pendulum is at mean position, its K.E will be
|
A. maximum
B. minimum
C. zero
D. all of them
|
| 2 |
How many number of anodes used in electron gun
|
A. one
B. two
C. three
D. six
|
| 3 |
Which of the following phenomenon proves the particle nature of light
|
A. interference
B. diffraction
C. photoelectric effect
D. none of these
|
| 4 |
The phase at the positive peak is
|
A. Π/2
B. Π
C. 3Π/2
D. 2Π
|
| 5 |
In a three phase a.c generator if the first coil has a phase 0, then the other two coils will have phases
|
A. 90° - 120°
B. 20° and 140°
C. 120° and 240°
D. 120° and 140°
|
| 6 |
When two spherical
conducting balls at different potentials are joined by metallic wire, the
current starts:
|
A. Decreasing from zero to
maximum
B. Increasing from zero to
maximum
C. Decreasing
from maximum to zero
D. Increasing from maximum
to zero
|
| 7 |
In full wave rectification, simultaneous action is that:
|
A. Two diodes conduct and two do not.
B. One diode conduct and three do not.
C. Three diodes conduct and one does not.
D. All the four diodes conduct
|
| 8 |
The phase at the positive peak of an A.C. cycle is:
|
D. 0 andᏘ
|
| 9 |
Michael Faraday is known by his work on
|
A. Nuclear strong force
B. Gravitational force
C. Nuclear weak force
D. Electric force
|
| 10 |
In RLC series circuit, resonance occurs when
|
A. XL > Xc
B. XL < Xc
C. XL = Xc
D. None of these
|
| 11 |
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
|
| 12 |
The potential difference across the conductors should be maintained constant by connecting the ends of wire to the terminal of a device called a source of
|
A. power
B. current
C. resistance
D. temperature
|
| 13 |
Ohm is the unit of
|
A. current
B. capacitance
C. energy
D. resistance
|
| 14 |
A gas which strictly obeys the gas laws under all conditions of temperature and pressure is called:
|
A. Ideal gas
B. Inert gas
C. Real gas
D. None of these
|
| 15 |
When the different streamlines cannot cross each other, then this condition is known as
|
A. continuity condition
B. turbulent flow condition
C. steady flow condition
D. none of them
|
| 16 |
When a source of light isat very large distance,the shape of wavefront is:
|
A. Spherical
B. Cylindrical
C. Plane
D. None of these
|
| 17 |
Most OP-AMP operates with
|
A. + 6 V supply
B. + 10 V supply
C. + 12 V supply
D. + 24 V supply
|
| 18 |
If the values of instantaneous and average velocities are equal, the body is said to be moving with
|
A. uniform acceleration
B. uniform speed
C. variable velocity
D. uniform velocity
|
| 19 |
The definite number of significant figures in 5000 is:
|
A. Four
B. Three
C. Two
D. One
|
| 20 |
A particle moving uniformly along circle its projection along diameter performs
|
A. Linear motion
B. Projectile motion
C. SHM
D. Rotatory motion
|
| 21 |
The locus of all the points in the same phase of vibration is called
|
A. Wave pocket
B. Wavefront
C. Wave number
D. None of these
|
| 22 |
There is a regular arrangement of molecules in a
|
A. amorphous solids
B. polymeric solids
C. crystalline solids
D. none of them
|
| 23 |
Pressure applied at any point of gas at rest is transmitted equally to all parts of the gas. This is the statement of:
|
A. Newton's second law
B. Pascal's law
C. Carnot theorem
D. Second law of thermodynamics
|
| 24 |
Current is measured in
|
A. volts
B. watt
C. ohm
D. ampere
|
| 25 |
In case of streamed lined flow of liquid, the loss of energy is
|
A. Maximum
B. Minimum
C. Infinite
D. equal to what is in turbulent flow
|
| 26 |
The velocity gained by the fluid in falling through the distance (h1 - h2) under the action of gravity is equal to the speed of the action of gravity is equal to the speed of the
|
A. orifices
B. efflux
C. fluid
D. none of them
|
| 27 |
If the distance between the plates of a parallel plate condenser of capacity 10μF is doubled then new capacity will be
|
A. 5μF
B. 20μF
C. 10μF
D. 15μF
|
| 28 |
Which of the following has a great concentration of impurity
|
A. base
B. emitter
C. collector
D. none of these
|
| 29 |
Which of the following is an example of SHM(in ideal situations)
|
A. Motion of simple pendulum
B. Motion of horizontal spring man system
C. Motion of violin string
D. All of these
|
| 30 |
When a shall explodes a mid-air, the total momentum of its fragments is
|
A. less than the momentum of shell
B. equal to the momentum of shell
C. greater than the momentum of shell
D. none of them
|