Question # 1

In circular motion, the motion of every particle of body is.

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Direction

Opposite

Same

None of these

The speed of satellites in GPS is:

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8.73 kms^-1

3.87 ms^-1

32 ms^-1

3.87 kms^-1

The sum of kinetic energy and potential energy of molecules or atoms is called.

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Temperature

Internal energy

Kinetic energy

Potential energy

Graph is plotted between ........ variable.

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1

2

3

4

Land breeze from land to sea during:

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Day

Night

Afternoon

Morning

The value of sin θ at an angle of 60o is

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0.5

0

0.707

0.866

In SI system , unit of density is:

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kgm^-1

kgm^-3

kgm^-2

kgm

A measuring cylinder is used to measure.

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Mass

Area

Volume

Level of liquid

Which one of the following units is not a derived unit?

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Pascal

Kilogram

Newton

Watt

Shining silvered surface is a best:

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Emitter

Absorber

Reflector

None of these

The value of g at a height one Earth's radius above the surface of the

Earth is:

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2 g

1/2 g

1/3 g1

1/4 g

the substance in which electric current flows easily is called:

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transistor

semi conductor

insulator

conductor

Electric field lines of force were first introduced by:

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Ampere

Farady

Fleming

Coulomb

The ray of the light after reflection from concave mirror passes through:

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Centre

Principal focus

Pole

None of these

In 1950, physicists observed that in cathode ray tube a special type of rays produced from cathode, these rays were called:

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Cathode rays

X-rays

Alpha rays

Gamma rays

The mirror whose inner surface is reflecting is called:

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Concave mirror

Convex mirror

Miroor

Lens

The totally reflectiing prism one angle is of:

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45^o

90^o

180^o

120^o

A 3Ω resistor having 2A current will dissipate the power of:

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12W

4W

6W

8W

the resistance of an ammeter should be:

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high

very high

low

constant

One micro coulomb charge is equal to:

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10^-3c

10³c

10⁶c

10^-6c

100x10³ A= :

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10^-3 A

10^-2 A

10 A

10^-1A

Capacitance is defined as:

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VC

Q/V

QV

V/Q

The centripetal force is always directed

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Away from the centre along the radius

Along the direction of motion

Opposite to the motion of the body

Towards the centre along the radius

Two waves of same frequency and moving in the same direction produces.

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Interference

Diffraction

Beats

Stationary waves

Which is unimportant in describing the satellites orbit.

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Distance of satellite from earth's center

Gravitational constant G

Mass of satellite

Mass of earth

Light entering rom air glass does not change in its.

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Frequency

Wavelength

Velocity

Direction

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

Interplaner distance can be determined by

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Newton's rings

Bragg's law

Diffraction pattern

Interferometer

Light waves are

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Longtail waves

Transvers waves

Stationary waves

Mechanical wave

According to first law of thermodynamics the quantity which is conserved.

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Force

Momentum

Energy

Power

One complete round trip of a body is called

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Displacement

Time period

Vibration

Frequency

Height of projectile is maximum at an angle of.

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45^o

60^o

30^o

90^o

Which of the following is not directed along the fixed axis of rotation.

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Angular displacement

Angular momentum

Centripetal acceleration

Angular acceleration

The sensitivity of galvanometer directly depends upon

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Magnetic field

Area of coil

Both a and b

None of a, b, c

The energy of photon is givne by

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mv2/2

hf

Va e

mac¹

The middle region of electric field is:

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Maximum field spot

Zero field spot

Perpendicular field spot

All of above

The combined effect of resistance and reactance in circuit is called:

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Impedance

Inductance

Capacitance

None of above

When a pot difference of 4 volt is applied across resistance, 10 J of energy is converted Find charge flows

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0.20 C

2.5 C

5.0 C

10.0 C

Logic gate can control some physical parameters like.

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Temperature, Pressure

Resistance, Inductance

Capacitance, Impedance

Current, voltage

Mass equivalent of 931 MeV energy is:

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6.02 x 10^-23 kg

1.766 x 10^-27kg

2.67 x 10^-29kg

6.02 x 10^-87kg

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In A.C circuit through a capacitor which one is:

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Current leads voltage by 90^∘

Current lags behind voltage by 90^∘

Both will be in phase

None of above

_____ has the largest de Broglie wavelength at same speed.

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Proton

Alpha particle

Carbon atom

Electron

A sensitive galvanometer is

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Unstable

Stable

Moderate

Both B and C