| 1 |
A particle performs SHM of amplitude 0.020 and frequency 2.5 Hz. What is its maximum speed.
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A. 0.050 m s-1
B. 0.125 m s-1
C. 0.314 m s-1
D. 0.75 m s-1
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| 2 |
The number 0.02 x 10-8in standard form will be written as.
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A. 2 x 10-10
B. 2 x 10-8
C. 20 x 10-8
D. 20 x 10-6
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| 3 |
The rest mass of a particle is independent of the
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A. Wavelength of the particle
B. Mass of the particle
C. Speed of the particle
D. Energy of the particle
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| 4 |
Which one of the following scientists got Noble prize due to his work of combining two basic forces of nature.
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A. Dr. Abdul Qadeer khan
B. Dr. Abdul Salam
C. Dr. Muhammad ishfaq
D. Dr. Mubarak mund
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| 5 |
Which one of the following solids exhibits only shot range order.
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A. Amorphous solids
B. Polymeric solids
C. Crystalline solids
D. Metals
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| 6 |
A physical quantity which produces rotation in a body is called.
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A. Force
B. Torque
C. Momentum
D. accelerate
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| 7 |
When of the following colours scatters minimum.
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A. Blue
B. Violet
C. Yellow
D. Red
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| 8 |
Which of the following is not true.
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A. Velocity can be nagative
B. Velocity is a scalar
C. Speed is a vector
D. Speed can be negative
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| 9 |
Lissajou's figures are used in a Cathode Ray Oscilloscope while measuring.
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A. Time period
B. Frequency
C. Voltage gain
D. phase angle
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| 10 |
The internal energy of monoatomic gas is.
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A. 3/2 RT
B. Independent of temperature
C. In the form of K.E.
D. Partially kinetic and partially potential
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| 11 |
A resistance is a device which
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A. Acids the flow of current is a circuit
B. Converts electrical energy to heat
C. Is a type of charge pump
D. Is like a switch
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| 12 |
In compound microscope, image formed by the eyepiece is
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A. Real
B. Invented
C. Erect
D. Diminished
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| 13 |
Coulomb's law for the electrostatic force between two electric charges resembles the
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A. Law of conservation of energy
B. Law of conservation of mass
C. Newton's law of gravitation
D. Newton's law of motion
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| 14 |
Capacitance is directly proportional to
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A. Distance between the plates
B. Di electric strength
C. Area of the plates
D. Charge multiplied by the applied voltage
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| 15 |
The law of gravitation was introduced by
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A. Huygen
B. Boyle
C. Newton
D. Pascal
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| 16 |
For which process is the relation Delta Q = Delta V true.
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A. Isothermal
B. Adiabatic
C. isobaric
D. Isochoric
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| 17 |
A capacitor is connected to a battery The fore of attraction between the plate when the separation between them is halved will
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A. Remain the same
B. Become twice
C. Become 4 times
D. Become 8 times
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| 18 |
The magnitude of the instantaneous velocity is called the.
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A. Displacement
B. Speed
C. Acceleration
D. Length
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| 19 |
The perpendicular distance between the line of action of forces and the axis of rotation
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A. Torque
B. Moment arm
C. Moment of force
D. Momentum
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| 20 |
Efficiency of a Carnot engine can never be 1 or 100% unless cold reservoir is at absolute temperature.
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A. 0 K
B. 100 K
C. 273 K
D. 373 K
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| 21 |
Which of the following is an electrical insulator that can be polarized by an applied electric field.
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A. Conductor
B. Condenser
C. Di electric
D. Capacitor
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| 22 |
What is the quantitative description of the effect of radiation on the living tissue.
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A. Radiation dosimetry
B. Radioactive dating
C. Telemetry
D. Dosage
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| 23 |
Which experiment confirmed the de Broglie hypothesis.
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A. Double slit experiment
B. Division germier experiment
C. Schrodinger's Cat experment
D. Bohr's experiment
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| 24 |
Two pure inductors each of self inductance L are connected in parallel The total inductance of the combination is.
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A. L
B. 2L
C. L/2
D. L/4
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| 25 |
If emf of the battery in a thermocouple is doubled, what is the rate of heat generation at one function.
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A. Remains unchanged
B. Becomes half
C. Become double
D. Becomes 4 times
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| 26 |
The term used for the emission of electrons when light strikes a surface.
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A. The zeeman effect
B. The photo electric effect
C. Skin effect
D. Compton effect
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| 27 |
Which vector gives the displacement from one point another in space.
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A. Null vector
B. Position vector
C. Unit vector
D. Distance vector
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| 28 |
Which of the given factors is increased in a step down transformer.
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A. Voltage
B. Current
C. Wattage
D. Resistance
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| 29 |
Which mirror be used for obtaining a parallel beam of light from a small lamp.
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A. Plane mirror
B. Convex mirror
C. Concave mirror
D. All of these
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| 30 |
Rainbows and mirage are formed by
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A. Reflection only
B. Refraction only
C. dispersion only
D. A combination of refraction, total internal refraction and dispersion
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