Question # 1

Highly conducting state of matter is:

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Solid

Liquid

Gas

Plasma

Momentum is quantity

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Scalar

Vector

Base

All

Which of following units is equal to Kgm² s^-2

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Newton

Joule

Watt

Coloumb

Which of the follow material has large specific heat?

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Copper

Ice

Water

Mercury

Latent heat of fusion is denoted by:

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H1

Hm

Hv

Hf

Normal human body temperature is :

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15°C

98.6°C

37°C

37°F

Which property can be determine by ARchimedes principle:

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Vapour pressure

Density

Compressibility

Elasticity

Which quantity is scalar?

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Force

Power

Velocity

Torque

The value of tan 45^ois:

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0.5

1.732

1

0.5777

The specific heat of water is

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2100 Jkg-1 k-1

4200 Jkg-1 k-1

2500 Jkg-1 k-1

2010 Jkg-1 k-1

The quantities that are completely decribed by only magnitude are.

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vector

Scalar

Base

Derived

A paper capacitor is usually available in the form of:

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Tubes

Rolled foil

Disc

Plates

Battery converts chemical energy into which energy:

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Mechanical

Electrical

Thermal

None of these

Short form of information Technology is:

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IT

ITS

CBIS

IS

After how much time the echo must be heard?

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0.1 s

0.10 s

0.20 s

0.50 s

In totally reflecting prism one angle is of 90°, and other two angles are of:

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30°,30°

45°,90°

45°,45°

40°,40°

Instrument used for detecting and testing the nature of charge on a body is called:

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Incubator

Spectroscope

voltmeter

electroscope

Two switches attached in series work on which operation?

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AND operation

OR operation

NOT operation

NOR operation

The lines will be in the form of concentric circles, if conductor is:

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Circular

Straight

Solenoid

None of these

When frequency of sound wave is increased, which of the following decreases:WavelengthPeriodAmplitude

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(i) Only

(iii) Only

(i) And (ii) only

(i) And (iii) only

the water waves after striking the hurdle will:

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reflect

refract

diffract

all a b and c

Which of the following is a method of energy transfer:

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Conduction

Radiation

Wave motion

All of these

Moment of inertia is measure din

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Kg m2

Kg m-2

Rad s-1

Joule second

If the slope of a velocity time graph gradually decreases than body is said to be moving with

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Positive acceleration

Negative acceleration

Uniform velocity

None

An oscillating mass-spring system produces

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Sound waves

Electromagnetic waves

Light waves

Periodic waves

The velocity of a projectile is maximum

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At the highest point

At point of launching and just before striking the ground

At half of the height

After striking the ground

Crests and trough are formed in.

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Longitudinal waves

transverse waves

Stationary waves

Compression waves

The speed of sound increases with the increase of in

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Pressure

Volume

Temperature

Density

In case of planets centripetal force is provided by

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Coulomb's force

Electrostatic force

Gravitational force

Magnetic force

In the absence of external force, the change in momentum is.

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Zero

Constant

Decreasing

Increasing

Which is the process in which temperature of the system remains constant.

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Adiabatic process

Isochoric process

Isothermal process

Isobaric process

A gas performs 10 J of work while expanding adiabatically. the change in its internal energy is.

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10 J

-10 J

100 J

-200 J

The difference between tow molar capacities is equal to.

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Plank's constant

General gas equation

Molar gas constant

Boltzmann constant

A photon while passing thorugh a magnetic field are deflected towards:

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North pole

South pole

Are ionized

None of these

The photoelectric effect predicts that light is made of

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Photons

Neutrons

Protons

None of these

The energy of 4th Orbit in hydrogen atom is.

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-2.51 eV

-3.50 eV

-13.60 eV

-0.85 eV

The resistivity of --------------------decrease with the increase in temp

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Gold

Silver

Copper

Silicon

One electron volt is equal to.

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1.6 x 10^-19 Joule

1.6 x 10^-19Coulomb

1.6 x 10^-12N

1.6 x 10¹⁸Joule

The position has charge which is in magnitude equal to the charge on

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Electron

Proton

β particle

All

The electric field lines are closer where the field is

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Strong

Weak

Uniform

Variable

If the coil is wound on iron core, the flux through it.

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Decreases

Becomes zero

Increases

Remains constant

The anodes in cathode ray oscilloscope.

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Control number of waves

Control brightness of sept formed

Accelerate as well as focus beam

Negative potential w.r.t to chithode

The photon with energy greater than 1.02 MeV can interact with matter as.

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Photoelectric effect

Compton effect

Pair production

annihilation of matter

In Wilson cloud chamber, ß-particles leave

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Thin and continuous tracks

Thick and continuous tracks

No tracks

Thin and discontinuous tracks