Question # 1

One radian is equal to:

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30.3°

45.3°

50.3°

57.3°

While finding the electric intensity at a point between two oppositely charged parallel plates, the Gaussian surface is taken in the form of a hollow:

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Cylinder

Box

Sphere

Circle

Rectangle

Resistance is measured in

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volts

ampere

ohm

watt

Alternating current can be transmitted:

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To long distance

At very high cost

At very low cost

Both (A) and (C)

Both (A) and (B)

The displacement of body executing SHM is

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x_ocoswt

x_osinwt

x_osin²wt

Both A, B

NmA^-1is commonly called:

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Weber

Apmere

Guass

Coulomb

None of these

The ohm's is defined as

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1 ampere / 1 volts

1 coulomb / 1 volt

1 volt / 1 ampere

1 volt / 1 coulomb

The electric lines of force are

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Imaginary

Physically existing everywhere

Physically existing near the charge

All of the above

If the velocity of the body decreases non-uniformly then the slope of the velocity-time graph will have

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different values

same values

zero valves

constant valves

A process is a reversible process, if the entropy of the system

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increases

decreases

remains constant

none of them

What are the SI base units of the coefficient of viscosity

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Kg m s^-2

kgm² s^-2

Kg m s^-1

kg m^-1s^-1

The lasing or active medium in He-Ne laser discharge tube is:

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Nitrogen

Helium

Hydrogen

Neon

None of these

An object is dropped from a height of 100 m. Its velocity at the moment it touches the ground is:

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100 m/sec

140 m/sec

1960 m/sec

196 m/sec

Free oscillations are always produced by:

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An applied force

Gravitational force

Restoring force and inertia

Inertia only

Work done is maximum when angle between force and displacement is:

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0°

90°

180°

None of these

The number of translation degress of freedom for a diatomic gas is

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2

3

5

6

Which one of the following elasticizes is possessed by fluids:

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Young's elastic modulus (length)

Bulk elastic modulus (volume)

Modulus of rigidity (shape)

None of these

In wilson cloud chamber, the air becomes saturated with:

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Alcohol vapours

Water

Helium gas

Nitrogen gas

None of these

The SI units of momentum is

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kg m s^-2

kg ms

kg m s²

N-s

Two conductors having the same type of charges are connected by a conducting wire. There would not be any amount of charges on them if

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They have the same potential

They have the same amount of charge

They have the same capacity

They have the same shape

A monkey sits on the pan of spring scale kept in an elevator. The reading of the spring scale will be maximum when

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Elevator is stationary

Elevator cable breaks and it falls freely towards earth

Elevator accelerates downwards

Elevator accelerates upward

The resistance of an incandescent lamp is

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Smaller when switched on

Greater when switched off

The same whether it is switch off or switch on

Greater when switched on

If electric and gravitational force on an electron in a uniform electric field will be

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E=mg/q

E=q/mg

E=,g/q

E=qg/m

In a straight current carrying conductor, the direction of magnetic field can be found by

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right hand rule

left hand rule

head to tall rule

none of these

The entire wave form of sinusoidal voltage is actually a set of all the:

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Positive maximum value + V_oand negative maximum value -V_o

Posiotive maximum value +V_oand zero

Zero and negative maximum value -V_o

Any of these

None of these

If the distance between the plates of a parallel plate condenser of capacity 10μF is doubled then new capacity will be

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5μF

20μF

10μF

15μF

Max Planck received the Nobel Prize for his discovery of energy quants in:

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1718 AD

1918 AH

1818 AD

1918 AD

None of these

Momentum is a parameter associated with

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wave motion

particle motion

neither wave nor particle motion

none of these

The value of threshold frequency for different metals is

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different

same

may be different or may be same

none of these

The ratio of velocity of sound in air at 4 atm pressure and that at 1 atm pressure would be

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1 : 2

4 : 1

1 : 4

2 : 1

A heater coil rated at (1000 W - 200 V) is connected to 110 volt line. What will be the power consumed?

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200 W

302.5

250 W

350 W

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