Question # 1

The graphical representation of ohm's law is

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hyperbola

straight line

ellipse

parabola

In the region surrounding a current carrying wire:

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A magnetic field is setup

The lines of force are elliptical

Direction of lines of forces depends upon direction of current

Both (A) and (C)

All of these

The density of blood is nearly equal to that of

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mercury

sodium

water

honey

With the help of 50 K v electron microscope, a resolution of

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0.5 to 1 m to possible

1 m to 10 m is possible

0.5 to 1 nm is possible

1 to 10 nm is possible

The number of protons inside a nucleus is called

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mass number

atomic weight

atomic number

none of these

The modulus of elasticity can be written as

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stress x strain

strain/stress

1/2 x stress x strain

stress/strain

Essential characteristic of equilibrium is

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Momentum equal to zero

Acceleration equal to zero

Kinetic energy equal to zero

Velocity equal to zero

The rate change of area expressed is expressed in:

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m²s^-1

ms^-2

m²s^-2

ms^-1

None of these

An irreversible heat flow from a hot to cold substances of a system, causes the disorder to

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decrease

remains the same

increase

any one of them

A particle moving uniformly along circle its projection along diameter performs

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Linear motion

Projectile motion

SHM

Rotatory motion

Such an inductor coil which does not consume energy and is often employed for controlling a.c. without consumption of energy is called

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Choke

impedance

Semi-conductor

None

The original source of geothermal energy is

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Biomass

Fossil fuels

Moon

Earth

The resultant of two equal forces is double of either of the force.The angle between them is

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0°

60°

90°

120°

Which one of the following particles projected perpendicular to a uniform magnetic field with the same velocity will be deflected least?

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Electron

Proton

Deuton

None of these

If λ = 589 nm d=1.0 mm L=225 cm then fringe spacing ΔY is given by

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1.76 mm

1.80 mm

1.37 mm

1.33 mm

When m₁>> m₂and V₂= 0, the result of their velocities are

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Interference and diffraction of light confirms its:

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Particle nature

Dual nature

Wave nature

Electromagnetic nature

When the car moves with constant acceleration, the velocity time graph is a

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Straight line

Straight line rises equally

Horizontal straight line

None of these

The typical speed of 100 meters dash

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2 ms^-1

4 ms^-1

10 ms^-1

12 ms^-1

The acceleration of the rocket is

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How many ways vector can be represented

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Bold letter

Arrow over capital letter

Graphically

All ow them

In an 𝑎 −decay:

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The parent and daughter nuclei have same number of protons

The daughter nucleus has one proton more than parent nucleus

The daughter nucleus has two protons less than parent nucleus

The daughter nucleus has two neutrons more than parent nucleus

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