Question # 1

The deforming force is called _______________

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Stress

Strain

Young's Modulus

Nil

Gallium (element) melts at:

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40 °C

30 °C

80 °C

90 °C

The sun's surface temperature is :

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3,000 K

3,030 k

6,000 K

600 K

A body jumps out of a moving bus. There is a danger for him to fall:

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Towards the moving bus

Away form the bus

In the direction of motion

opposite to the direction of motion

Motion of the rocket is the example of which law?

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First law

Second law

Third law

Law of momentum

The least count of screw gauge is.

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.01 mm

0.1 mm

.001 mm

.01 m

If 1N is force and body is displaced to 1m than work is :

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2 J

1 J

3 J

4 J

The first man who gave the idea of gravity:

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Hero

Einstein

Newton

Faraday

.............. is example of vector.

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Length

Force

Mass

Time

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

A body OF mass 10 kg taken to height of 5m:

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P.E = 500 J

P.E = 50 J

P.E = 5 J

P.E = 5000 J

In a vacuum all electromagnetic waves have the same:

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Speed

frequency

amplitude

wavelength

Which of the following is an example of simple harmonic motion:

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Motion of a simple pendulum

The motion of ceiling fan

The spinning of the earth on its axis

A bouncing ball on a floor

The distance between principal focus and pole of mirror is called:

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Principal focus

Focal length

Aperture

Image

The value or current I passing through a conductor is inversely proportional to:

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Temperature

Potential difference

e.m.f.

resistance

How does sound travel from its source to your ear?

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Byc changes in air pressure

By vibration in wires or strings

By electromagnetic waves

By infrared waves

Information storage device work on the principles of:

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Heat

Sound

Light

Magnetism

If a charged body is brought near a negatively charged electroscope and the leaves of electroscope diverge, then the body is:

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Positively charged

Negatively charged

Neutral

None of these

If the mass of the bob of a pendulum is increased by a factor of 3. The period of the pendulum's motion will:

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Be increased by a factor 2

Remain the same

Be decreased by a factor of 2

Be decresaed by a facro of 4

The displacement produced in the spring directly proportional to force is called:

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Hook's law

Boyle's law

Newton's law

both 'b' and 'c'

The output of a NAND gate is 0 when

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Both of its inputs are 0

Both of its inputs are 1

any of its inputs is 0

any of its inputs is 1

Coaxial cable are used to transmit signals:

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Magnet

Electric

Mechanical

Both mechanical and magnet

The mass of a body is quantitative measure of its

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Motion

Inertia

Weight

All of these

The slope of velocity time graph shows

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Total distance covered

Average acceleration

Instantaneous acceleration

Torque

Apparent weight of a man is in upward accelerated lift will

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Increases

Decreases

Remain same

Increases then decrees

In the absence of external force, the change in momentum is.

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Zero

Constant

Decreasing

Increasing

The centre of Newton's rings will be

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Dark

Bright

Coloured

Not visible

If velocity 'v' of an object is double, then K.E. because.

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Remain same

Sixteen times

Double

Four times

The law of conservation of mass gives us

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Equation of continuity

Stock's law

Bernoulli's equation

Viscosity

If 20 waves passes through he medium in 2 sec of 10 ms-1 then he wavelength is.

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200 m

2 m

1 m

0.5 m

The dimensional of potential energy per unit volume are same as that of.

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Work

Pressure

Speed

Density

The distance between two consecutive crests of troughs is called

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Time period

Wave length

Frequency

Displacement

The flow of a fluid is of

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One type

Two types

Three types

Four type

Production of x rays is reverse process of

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Photo electric effect

Compton effect

An nihilation

Pair production

In 'N' type material, the minority charge carriers are.

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Free electrons

Holes

Protons

Mesons

The device which allows only the flow of D.C. is.

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Capacitors

transformer

Inductor

Generator

At resonance, the behavior of R-L-C series circuit is.

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Resistive

Capacitive

Inductive

Modulative

Phase difference between V and I of an A.C through resistor is.

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Zero Degree

90 ^o

80^o

120^o

μ_∘(Ampere's constant) has value.

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4πx10^-7 WbA^-1m^-1

4πx10^-17 Wbm²

4πx10⁷ WbA^-1m^-1

4πx10-27 Wb/m²

In the capacitive circuit of A.C. quantity when q= 0 the slope of q-t curve is.

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Maximum

Minimum

Zero

Negative

The materialization of energy take place in the process of.

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Photo electric effect

Compton Effect

Pair production

Annihilationof matter

The process by which lesser beam can be used to generate 3-dimensional images of objects is called

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Holography

Geo graphy

Tomography

Radio graphy

In nuclear radiation , track of alpha particle is.

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Thin

Discontinuous

Erratic

Continuous

In photovoltaic cell, current is directly proportional to.

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Wavelength of light

Intensity of light

Energy

Frequency of light