Question # 1

The entity which measures the quantity of motion in a body is called

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force

energy

momentum

power

A diatomic gas molecule has

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translational energy

rotaional energy

vibrational energy

all of them

Area under the force displacement graph gives

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Power

Work

Heat

Energy

Mass of proton is of order of

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10^-31gm

10^-27kg

10^-24gm

10⁺²⁷kg

The principle characteristics of an ideal standard are

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Inaccessible and Invariable

Accessible and Invariable

Accessible and Variable

None of these

A physical system under going forced vibrations is known as

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Simple harmonic oscillator

Compound harmonic oscillator

Physical harmonic oscillator

driven harmonic oscillator

A car is turning around a corner at 10 m/sec as it travels along an arc of a circle. If value of centripetal acceleration is 10 m/sec²in this case, find radius of the circular path:

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1 m

5 m

10 m

15 m

Each atom in a metal crystal vibrates about a fixed point with an amplitude that:

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Decrease the rise in temprature

Is not affected by rise in temprature

Increase with rise in temprature

Both (B) and (C)

None of these

Tick the series which lies in the visible region:

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Lyman series

Balmer series

Paschen series

Brackett series

P fund series

The amplifier which us used to perform mathematical operations electronically is known as

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calculator

OP-AMP

computer

any one of them

The value of current at resonance in series LCR circuit is affected by the value

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R only

C only

L only

R, C and L

The bonding between the semi-conductor materials is

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covalent

ionic

either of them

none of them

A charged particle moving at right angle to the magnetic field will experience

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minimum force

maximum force

zero

moderate force

Field lines are closer to each other in the region where the filed is

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Stronger

Weaker

Much weaker

Absent

None of these

When the bob of simple pendulum is at extreme position, its K.E. will be

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maximum

minimum

zero

all of them

A fuse wire is having 5 ampere current rating. What is the peak value of current it can have?

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0.7074 A

7.07 A

0.0707 A

7.707 A

In the doping process, the ratio of the doping atoms to the semi conductor atom is

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1 to 10

1 to 10³

1 to 10⁶

1 to 10⁹

The device which can convert heat energy into electrical energy is called:

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Thermistor

Thermometer

Thermostat

Thermocouple

Both (C) and (D)

When a water droplet falls through air, the net force on it is

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Net force = drag force - weight

Net force = weight - drag force

Net force = drag force + weight

Net force = weight + drag force

Which of the following is a state variable

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entropy

pressure

volume

all of them

In a container having water filled up to a height h, a hole is made in the bottom. The velocity of water flowing out of the hole is

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Independent of h

Proportional to h^1/2

Proportional to h

Proportional to h²

The life time of metastable state is equal to

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Life time of excited state

Greater than by excited state

Zero

Less than by excited state

A stone is dropped from rest from the top of a tower 19.6 m high. The distance traveled during the last second of its fall is (giving g=9.8 m/s^s)

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9.8 m

14.7 m

4.9 m

19.6 m

The behaviour of gases is well accounted by the kinetic theory based on

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microscopic approach

macroscopic approach

both of them

none of them

A prism splits a beam of white light into seven component colors. This is so because

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Phase of different colors is different

Amplitude of different colors is different

Wavelength of different colors is different

Velocity of different colors is different

The product of the pressure and volume of an ideal gas is

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A constant

Approximately equal to the universal gas constant

Directly proportional to its temperature

Inversely proportional to its temperature

The chemical properties of an element depends upon the number of

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electron

position

photons

neutrons

If the objects of different masses move with the same velocity, then it is more difficult to stop the

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lighter of the two

massive of the two

any one of them

both of them

The waves produced in a microwave oven have frequency

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2450 Hz

2450 K Hz

2450 M Hz

2450 G Hz

Which one of the following is the unit of electric field intensity

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JC^-1

Vm^-1

Cm^-1

CJ^-1

The expression of Hook's law is

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F=ma

F=kx

F= -kx

-kx=ma

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