| 1 |
The passage of current is accompanied by a
magnetic field in the surrounding space:
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| 2 |
Force acting upon a charged particle kept between the plates of a charged condenser if F. IF one of the plates of the condenser is removed, force acting on the same will become
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A. Zero
B. F/2
C. F
D. 2F
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| 3 |
Which of the following is a state variable
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A. entropy
B. pressure
C. volume
D. all of them
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| 4 |
The speed of the secondary wavelets as mentioned in Huygen's principle is ________ the speed of propagation of the wave itself
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A. Equal to
B. Greater than
C. Smaller than
D. None of these
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| 5 |
The space around the earth within which it expects a force of attraction on other bodies is known as:
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A. Nuclear field
B. Conservative field
C. Electric field
D. Gravitational field
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| 6 |
Avo-meter is used of measure the
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A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
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| 7 |
A grating with high resolving power can distinguish _______ difference in wavelengths :
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A. Larger
B. Zero
C. None of these
D. Smaller
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| 8 |
When a transistor is used as a switch the circuit in which the current is to be switched OFF and ON, is connected between the
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A. base and emitter
B. collector and emitter
C. base and collector
D. any one of these
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| 9 |
The vector is space has:
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A. One Component
B. Two Compnents
C. Three Components
D. Non of these
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| 10 |
The diameter of an atom is of the order
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A. 10-125m
B. 10-11m
C. 10-10m
D. 10-9m
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| 11 |
The energy stored int he water of the dam is:
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A. Electric energy
B. Kinetic energy
C. Potential energy
D. None of these
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| 12 |
The second law gives the relationship between
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A. mass and velocity
B. force and acceleration
C. velocity and acceleration
D. mass and weight
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| 13 |
How much time, theα-particle more massive than an electron
|
A. 600
B. 7000
C. 5000
D. 15000
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| 14 |
Which of the following is not an example of intertial frame
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A. a body placed on the surface of earth
B. a body placed in a car moving with uniform velocity
C. a body placed in a car moving with same acceleration
D. none of these
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| 15 |
The inkjet printer eject a thin stream of:
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A. Water
B. Oil
C. Ink
D. Any above
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| 16 |
For an atom having atomic number Z and atomic weight A, the number of electron in an atoms
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A. A - Z
B. A + Z
C. Z
D. A
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| 17 |
Which one of the following is not a vector quantity?
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A. Kinetic energy
B. Acceleration
C. Momentum
D. Force
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| 18 |
Lead, copper and wrought iron are examples of
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A. brittle substances
B. ductile substances
C. plastic substances
D. elastic substances
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| 19 |
Which one the following gives three regions of electromagnetic spectrum in order of increasing wavelength?
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A. Gamma rays, micro waves, visible light
B. Radio waves, ultraviolet waves, X-rays
C. Ultraviolet rays, infrared rays, micro waves
D. Visible light, gamma rays, radio waves
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| 20 |
Amorphous solids are also called as
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A. crystalline solids
B. polymeric solids
C. glassy solids
D. any one of them
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| 21 |
Direction of motion _________ in circular motion
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A. Changes off and on
B. Changes continously
C. Does not change
D. None of them
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| 22 |
A body can have constant velocity when it follows:
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A. A circular path
B. A rectilinear path
C. Trajectory of a projectile
D. None of these
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| 23 |
In a charged capacitor the energy is stored in
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A. Both in positive and negative charges
B. Positive charges
C. The edges of the capacitor plates
D. The electric field between the plates
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| 24 |
Inverter is the name given to:
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A. NOT gate
B. OR gate
C. NOR gate
D. AND gate
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| 25 |
An electronic computer is basically a vast arrangement of electronic switches which are made from
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A. Resistors
B. Transistors
C. N -type crystals
D. P-Type crystals
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| 26 |
Electromagnetic waves transport
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A. Energy only
B. Momentum only
C. Both A and B
D. None is correct
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| 27 |
To hear a clear echo, the reflecting surface must be at a minimum distance of
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A. 10 m
B. 16.5 m
C. 33 m
D. 66 m
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| 28 |
The wave form of S.H.M will be
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A. square wave
B. sine wave
C. rectified wave
D. saw-tooth wave
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| 29 |
The branch of physics which concerned with the ultimate particles of which the universe is composed is known as
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A. SolidState physics
B. Particle Physics
C. Nuclear Physics
D. Atomic Physics
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| 30 |
A stationary sound wave has frequency 165 Hz (speed of sound in air = 330 m/s) then distance between two consecutive nodes is
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A. 2 m
B. 1 m
C. 0.5 m
D. 4 m
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