Question # 1

A galvanometer can be converted into voltmeter by connecting in series with the galvanometer a

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Low resistance

High resistance

Resistance of intermediate range

Shunt

The amount of charge which can be placed on a conductor does not depend on.

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The dielectric strength of the surrounding medium.

Its capacitance

Its potential

Its size or shape

The usefulness of X rays is largely due to their

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Mass

Density

Volume

Penetrating power

Neil Bohr made his three postulates in.

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1897

1905

1913

1921

The dimensions of torque are.

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[MLT-2]

[ML-1T-1]

[ML2T-2]

[ML-2]

All particles, of a wave front vibrate

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In same phase

In opposite phase

Upward down

Left and right

The unit of Rydberg constant R is

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m

m3

m^-1

m-2

The steady current which produces the same heating effect in a resistance in a given time as the alternating current does in the same resistance in the same time is called.

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Induced current

Root mean square value of an alternating current

Mean value of alternating current

Electromotive force

Shadow formation and the pin hole camera illustrate the

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Phenomenon of reflection

Phenomenon of refraction

Phenomenon of total internal reflection

Rectilinear propagation of light

Which equation in electromagnetism describe the magnetic field B generated by an electric current.

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ampere's circuital law

Bio savart law

Gauss's law for electromagnetism

Coulomb's law

Which of the following represents an elastic wave.

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Light waves

Radiowaves

X-rays

Sound waves

When did max planck suggest that energy is released or absorbed in discrete packets.

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1899

1900

1905

1911

Who was the most outstanding theoretical physicist.

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Daniel

Maxwell

Ampere

Young

Electric field lines

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Start from a negative charge and terminal ate on a positive charge

Never cross each other

Always cross each other

Leaving a positive charge are not proportional to the maginitud of charge

The static friction is.

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Always equal to dynamic friction

Always less than dynamic friction

Always greater than dynamic friction

Sometimes greater and sometimes less than dynamic friction

A ball is thrown straight up What is its acceleration just before it reaches the highest point.

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Zero

slightly less than g

Exactly g

Slightly greater than g

Force acting on a test charge between the plates of a parallel plate capacitor is F. If one of the plates is removed teh force on the same test charge will be.

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Zero

F/2

F

2 F

In heavy elements of the periodic table the number of neutrons than protons are.

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Lesser

Greater

Equal

Undetermined

The best shield against Gama rays would be of

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Heavy water

Aluminium

Iron

Lead

Which of the following is a clinical thermometer.

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Gas thermometer

Mercury thermometer

Alcohol thermometer

Radiation thermometer

Since a diode permits the flow of current only in one direction so it can be used as.

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An oscillator

A rectifier

A phot deflector

A transistor

In any collision between two bodies there need nor the conservation of

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Linear momentum

Angular momentum

Total energy

Kinetic energy

The two elements with same number of electrons but different mass number are called.

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Isotones

Isobars

Isotopes

Isomers

A slow neutron can cause fission in

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Uranium -238

Uranium-235

Hydrogen-1

Thorium -232

Gas law PV = constant is for

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Adiabatic change

Isothermal changes

Isobaric changes

Isochoric changes

From which radiation it is most difficult to protect oneslelf.

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Alpha radiation

Beta radiation

Gama radiation

Heat radiation

A body moves with velocity of 2 x 10⁶ m s-1 its relativistic mass becomes

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Zero

Unity

Double of its rest mass

Infinity

If an object moves with velocity of light the apparent length of the object moving the direction of motion becomes.

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Larger

Smaller

Zero

Infinity

A new class of ceramics materials was discovered in.

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1938

1958

1978

1986

Which of the following defines P.E. per unit charge.

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Electric current

Charges

Potential

Electric field

LASER is a device for

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Producing a beam of white light

Producing a beam of monochromatic and coherent light

Producing a beam of high intensity incoherent light.

Producing highly penetrating's X -rays

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