| 1 |
Where the streamlines are very far apart from each other, the pressure will be
|
A. low
B. zero
C. high
D. all of them
|
| 2 |
Which of the following statements for an object in equilibrium is not true?
|
A. The object must be at rest
B. The object can be at rest
C. The object is moving at constant speed
D. The acceleration of the object is zero
|
| 3 |
The magnitude of the displacement is a line from initial position to final position which is
|
A. straight
B. curved
C. either be curved or straight
D. none of them
|
| 4 |
The phase at the positive peak is
|
A. Π/2
B. Π
C. 3Π/2
D. 2Π
|
| 5 |
An object is dropped from a height of 100 m. Its velocity at the moment it touches the ground is:
|
A. 100 m/sec
B. 140 m/sec
C. 1960 m/sec
D. 196 m/sec
|
| 6 |
In an adiabatic expansion, the temperature of the gas
|
A. increases
B. becomes zero
C. decreases
D. decreases rapidly
|
| 7 |
A capacitor of capacity 1μF is charged to 1 KV. The energy stored in J
|
A. 5
B. 0.5
C. 0.005
D. 50
|
| 8 |
Lead, copper and wrought iron are examples of
|
A. brittle substances
B. ductile substances
C. plastic substances
D. elastic substances
|
| 9 |
A virtual image is formed when object is placed:
|
A. Within focal length of a convex lens
B. Near the focal point of a concave lens
C. Both A and B
D. Away from 2F of a convex lens
|
| 10 |
The vector representation of force experience give the direction of
|
A. magnetic field
B. current
C. length of conductor
D. force
|
| 11 |
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
|
| 12 |
The current sensitivity of the galvanometer is
|
A. C/BAN
B. BAN/C
C. CAN/B
D. CBN/A
|
| 13 |
A body starting from rest covers a distance of 0.45 Km and acquires a velocity of 300 Kmh-1. its acceleration will be
|
A. 7.71 m s-2
B. 0.5m s-2
C. 0.15m s-2
D. 0.092m s-2
|
| 14 |
Stars twinkle due to
|
A. The fact that they do not emit light continuously
B. The refractive index of earth's atmosphere fluctuates
C. The Star's atmosphere absorbs its light intermittently
D. None of these
|
| 15 |
The time period of pendulum, at center of earth.
|
A. Zero
B. Infinite
C. Maximum
D. Minimum
|
| 16 |
Radioactivity is
|
A. self disruptive activity
B. spontaneous activity
C. exhibited by all elements under proper conditions
D. both 'a' and 'b'
|
| 17 |
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
|
| 18 |
Referring to the above figure, we can say that of all the elements, the most stable element is
|
A. Phosphours
B. Iron
C. uranium
D. Lithium
|
| 19 |
With reference of figure P-1 which of the following statements relating the average velocity for the complete path and the instantaneous velocity at point Velocity at point C is true.
|
A. The average velocity and the instantaneous velocity of C are equal
B. The relation depends upon the mass of the toy car
C. The average velocity is greater than the instantaneous velocity at C equal
D. The instantaneous velocity at C is greater than the average velocity.
|
| 20 |
In thermodynamics, internal energy is the function of
|
A. temperature
B. pressure
C. state
D. none of them
|
| 21 |
In case of point source of light, shape of wavefront is
|
A. Spherical
B. Cylindrical
C. Plane
D. None of above
|
| 22 |
Si units of time period is
|
A. second
B. hertz
C. revolution
D. vibration/sec
|
| 23 |
The energy stored in a charge capacitor
|
A. 1/2CV2
B. 1/2C2V
C. 1/2C/V2
D. None of these
|
| 24 |
A ball is dropped from a height of 4.2 meters. To what height will take it rise if there is no loss of KE after rebounding?
|
A. 4.2 m
B. 8.4 m
C. 12.6 m
D. none of these
|
| 25 |
In case of a parallel plate capacitor if the plate separation is doubled and plate area is halved, the capacitance becomes
|
A. Four-fold
B. One-half
C. One-fourth
D. Zero
|
| 26 |
The force exerted by the fluid in a hydraulic pump on the piston is 10 cm2, the fluid pressure on the piston is, in N/cm2
|
A. 20
B. 200
C. 2000
D. 20,000
|
| 27 |
The angular speed of a particle moving along a circular path is 5 Pie rad sec-1, Its period of motion is:
|
A. 2.5 sec
B. 0.06 sec
C. 15.7 sec
D. 0.4 sec
|
| 28 |
High energy physics is branch of physics, which deals with:
|
A. Stars and galaxies
B. Sub-atomic particles
C. Light and sound
D. Molecules
|
| 29 |
A body moving along the circumference of a circle of radius R completes one revolution. The radius of a covered path to the angle subtended at the centre is:
|
A. Radius of the circle
B. Twice the radius
C. Thrice the radius
D. None of these
|
| 30 |
The CRO is used for displaying the waveform of a given
|
A. current
B. voltage
C. both of them
D. none of them
|