Question # 1

The SI unit of magnetic induction is tesla which is equal to

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Newton/ampere-meter or N/A-m

Newton/ampere²-meter or N/A²-m

Newton/ampere²-meter² or N/A²-m²

Newton/ampere²-meter²or N/A²-m²

The pattern of crystalline solid is:

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One dimesional

Two dimensional

Three dimensional

Either (A) or (B)

None of these

A body starting from rest covers a distance of 0.45 Km and acquires a velocity of 300 Kmh^-1. its acceleration will be

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7.71 m s^-2

0.5m s^-2

0.15m s^-2

0.092m s^-2

The velocity of sound in air not effected by changes in

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Moisture contents in air

Temperature of air

The atmosphere pressure

The composition of air

When two objects come to common temperature, the body is said to be in:

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Static equilibrium

Dynamic equilibrium

Thermal equilibrium

None of these

Referring to above figure, due to change in current in the coil P, the change in magnetic flux

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Is associated with coil P

Is associated with coil S

Causes and induced current in coil S

All of these

None of these

The charge per unit time through any cross-section of a conductor is called

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capacitance

electric power

current

potential difference

The graph showing the variation of displacement with time is a:

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Sine curve

Straight line

Parabola

None of these

The volume of universal gas constant R is:

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8.314 J/K mole K

8314 J/K mole K

8.314 J/mole K

None of these

Hydrogen and helium of same volume V at same temperature T and same pressure P are mixed to have same volume V. The resulting pressure of the mixtures will be

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R/2

P

2P

Depending on the relative mass of the gases

When half of the cycle of a body executing S.H.M is completed, then the phase of the vibration will be

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45°

90°

135°

180°

Total number of base units are

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three

five

seven

nine

A women of 50 kg distributes her wright equally over high-heeld shoes. Each heel has an area of 0.75 cm². The pressure exerted by each heel will be

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6.66 x 10⁶ Pa

3.33 x 10⁶ Pa

1.67 x 10⁶ Pa

3.33 x 10^-6 Pa

Characteristics of optic fibre is/are

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Much thineer

Light weight

Extremely wide bandwidth

All of these

Time of flight of a body in projectile is the time in which a body

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Remains in the air

It reaches maximum height

The velocity becomes zero

None of these

A frame of reference stationed on Earth in approximately an example of

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Inertial frame

Non-inertial frame

Every frame

None of these

Which does not show polarization

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Longitudinal wave in gas

Transverse wave in gas

Both a and b

None of these

To get higher magnification we must use

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Simple microscope

A convex lens

A compound microscope

All of these

Identify the pair whose dimensions are equal

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Torque and work

Stress and energy

Force and stress

Force and work

In deformation of the material, the potential energy of the molecules due to displacement from their mean positions is

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Lost

Gained

No lost no gain

None of these

An optical fibre with its protective case may be typically 6.0 mm in diameter and yet it can replace bundle of copper of diameter

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6.79 cm

6.95 cm

7.52 cm

7.62 cm

A capacitor is charged with a battery and then it is disconnected A slab of dielectric is now inserted between the plates then

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The charge in the plates reduces and potential difference increase

Potential difference between the plates increases stored energy decreases and charge remains the same

Potential difference between the plates decreases,stored energy decreases and charge remains unchanged

None of the above

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