Question # 1

Energy gas behaves like an ideal gast at

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High temperature and low pressure

Low temperature and high pressure

Both A and B

None

The heat required to raise the temperature of one mole of the substance through 1 K is called

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heat capacity

specific heat capacity

molar specific heat

all of them

The instantaneous acceleration of a body moving with constant speed in a circle:

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Remains constant

Is called centripetal acceleration

Tangential acceleration

None of these

A magnifier gives an image which is:

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Virtual, inverted

Real, erect

Virtual, erect

Real, inverted

The magnetic field outside the solenoid due to current is

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strong

zero

weak

uniform

The current produced by moving a loop of wire across a magnetic field is called

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Direct current

Magnetic current

Alternating current

Induced current

None of these

Magnetic lines of force:

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Cannot intersect at all

Intersect at infinity

Intersect within magnet

Intersect at Neutral Point

None of these

While deriving the equation for pressure of a gas we consider the

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rotational motion of molecules

vibrational motion of molecules

linear motion of molecules

all of them

U-238 present in the natural uranium is about:

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59%

0.007%

99%

39%

19%

When an object moves with a uniform angular velocity, then its instantaneous angular velocity is equal to:

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Zero

Its average velocity

Its angular displacement

None of these

Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as

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IT = 10^-4G

IT = 10⁵G

IT = 10³G

IT = 10⁴G

At the maximum height the V_fis

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Constant

Zero

Maximum

None of these

Viscosity of air is

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0.019x10³ Nsm^-2

0.019x10^-3 N-sm^-2

0.019x10³ Nsm^-2

When two objects come to common temperature, the body is said to be in:

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Static equilibrium

Dynamic equilibrium

Thermal equilibrium

None of these

Flow rate has SI unit

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m²/s

m/s

m³/s

m³/s²

The equation PVr = Constant applies to:

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Isothermal process

Adiabatic process

Isobaric process

None of these

Satellites are objects that orbit around the

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Sun

Planet

Earth

None of these

Hails fall faster than rain drops due to their

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Greater size

Greater mass

Greater area

None of these

In a photocell, sodium and potassium emit electrons for:

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Visible light

Infrared light

Ultraviolet light

All of these

The SI unit of power is terms of base unit is

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Watt

Kgm²s^-3

Kgm^-2s^-3

Kgm²s³

When a silicon crystal is doped with trivalent impurity which are

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Indium

Arsenic

Phosphorous

None of these

The velocity of a body at some particular instant is called

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Initial velocity

Instantaneous velocity

Variable velocity

None of these

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