Question # 1

Kgms^-2 is equal to:

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Joule

Mole

Newton

Watt

Acceleration is produced by 20 N force it is due to:

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Inertia

Force

Momentum

None

The range of clinical thermometer is:

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90 ^oC - 106^oC

35^oC - 42^oC

100^oC - 132^oC

24^oC - 35^oC

The study of the structure and properties of atom is called.

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Electricity

Nuclear physics

Geo Physics

Atomic Physics

1 Newton =_________

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1 kg ms^-2

1 kg ms

1 kg m^-1s^-2

1 kg^-1m^-1 s^-1

Unit of moment arm (L) is:

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Meter

Mole

Newton

Nm

Breaking system in vehicles depends upon:

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Pascal's law

Hook's law

Archimedes law

Principle of floatation

If an object is moving with constant speed then its distance time graph will be a straight line.

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Along time -axis

Along distance -axis

Inclined to time - axis

Parallel to time-axis

When horse pulls a cart, the action is on the:

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Cart

Earth

Horse

Earth and cart

The main source of energy in the unierse is:

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Moon

Stars

Sun

Planets

A force of 10 N is making an angle of 30o with the horizontal. Its horizontal component will be

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4N

5N

7N

8.7N

In simple harmonic motion, the acceleration of the body is…………. Proportional to the displacement.

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Inversely

Directly

Equally

Ration

In D.C.motor split rings are made of:

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Steel

Carbon

Copper

Iron

The equivalent resistance of a parallel combination is

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equal to sum of all resistance

is greater than the largest resistance of combination

is smaller than the smallest resistance of combination

All of these

Totally reflecting prism is used in:

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periscope

binoculars

periscope and binocular

telescope

Which of the following quantities is not change during refraction of light?

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Its direction

Its speed

its frequency

Its wavelength

The unit of spring constnat is:

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m

kg

Nm²

Nm^-1

The refractive index of internal coating of optical fibre is:

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1.56

1.51

1.53

1.58

1.6x10^-19 J= :

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1F

1N

1eV

The converter of digital to analogue signal is:

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ADC

DAC

DATC

DTC

The combined resistance of two identical resistors, connected in series is 8Ω. Their combined resistance in a parallel arrangement will be:

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2Ω

4Ω

8Ω

12Ω

The current which does not change its direction is called:

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A.C

D.C

Conventional

Transient current

_______ is bio fuel

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Water

Petrol

Ethanol

Oil

Frequency 'f' and time period 'T' are related as

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The mean kinetic energy of gas is at.

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0 ^oC

-273 ^oC

100 K

100 ^oC

Which is the example of vector quantity

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Torque

Speed

Density

Work

A finite volume of gas consists of

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Small no. of molecules

Large no. of molecule

Average no. of molecule

None of these

Teh speed of sound in air is 340 m/s. If the pressure of air is doubled then the speed becomes.

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Double

Half

Four times

Remains same

Which one is true for isothermal process.

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Q = 0

W = 0

Q = W(D) Delta U = 0

None of these

Sound travel faster in

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CO2

H2

O2

He

In red light is used as compare to blue light then fringe spacing.

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Decreases

Remain same

Increases

Becomes zero

Original source of energy for biomass is

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Earth

Star

Moon

Sun

If a mass of a body is doubled, then acceleration becomes.

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Double

Half

One fourth

Constant

The function of three anodes a C.R.O is

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To accelerate electrons only

To focus the electrons only

To control the brightness of spot on screen

To accelerate and focus the electrons

Three resistors of resistance R each are combined in various ways, Which of the following cannot be obtained?

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3 RΩ

2R /4Ω

R/3Ω

2R /3Ω

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

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Impedance

Inductance

Capacitance

None of above

Eintein's Photoelectric equation is E_k= hf -∅ in this equation E₁, refers to:

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K.E of al the emited electrons

Mean K.E of emited electrons

Maximum K.E of emited electrons

Minimum K.E of emited electrons

The galvanometer can be made sensitive by making the factor BAN/C

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Large

Small

Constant

Zero

Eddy current is one cause energy loss in

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A.C. generator

Transformer

D.C. motor

D.C. generator

Direct current can not flow through.

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Inductor

Resistor

Transistor

Capacitor

Target material used in x-rays tube have following properties.

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High atomic number and high melting pouint

High atomic number and low melting pouint

Low atomic number and low melting pouint

High atomic number only

A proton is about 1840 time than an electron. When it is accelerated by a potencial difference if 1 kV, its kinetic energy will be:

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1884 ke V

1/1840 keV

1 keV

920 keV

Which one has greater cone of impurity among all:

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Emitter

Base

Collector

All are pure

If a step up transformer were 100% efficient the primary and secondary winging's would have the same.

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Current

Power

Voltage

Direction of winding