Question # 1

The path followed by the projectile is known as:

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Cycle

Hyperbola

Trajectory

Route

The current produced by moving a loop of a wire across a magnetic field is called:

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Direct current

Magnetic current

Alternating current

Induced current

None of these

At any point on the right bisector of the line joining two equal and opposite charges

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At electric field is zero

The electric potential is zero

The electric potential decreases with increasing distance from the centre

The electric field is perpendicular to the line joining the charges

When a mass 'm' is pulled slowly through a distance 'x_o' , the elastic potential energy of the spring would be

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P.E=Kx²_o

P.E= 1/2kx_o

P.E=1/2Kx²_o

P.E=Kx²_o

When the particles of the medium vibrate about their mean position, along the direction of the motion of waves, then the waves are called:

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Longitudinal waves

Transverse waves

Water waves

Complex waves

During the projectile motion, the horizontal component of velocity

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changes with time

remains constant

becomes zero

decreases with time

The magnitude of the force producing an acceleration of 10 m/sec²in a body of mass 500 grams is:

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3 N

4 N

5 N

6 N

The conventional current is the name given to current due to flow of

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Positrons

Positive charges

Negative charges

Both A and C

None of these

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

On colliding in a closed container, the gas molecules

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Transfer momentum to the walls

Momentum becomes zero

Move in opposite directions

Perform Brownian motion

If mass of 10 gm is suspended from a spring of K=0.8 Nm^-1then the extension will be:

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10 cm

1 m

10 mn

None of these

Negative of vector can be made when

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Magnitude is made negative

Directions is reverse with negative magnitude

Only direction is changed

None of these

The fluid which is incompressible and non viscous is called

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Ideal fluid

Non ideal fluid

Perfect fluid

All

The idea that all magnetic effects may be due to circulating currents (i.e moving charges) Was first held by

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Ampere

Faraday

Lenz

Gauss

In Milikan's oil drop experiment, the drag force on oil drop is

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F_D = 6ηrv_t

F_D = 6πηrv_t²

FD = 6πηr²v_t

FD = 6πηrv_t

Spherical balls of radius 'r' are falling in a viscous fluid of viscosity 'η' with a velocity 'v'. The retarding viscous force acting on the spherical ball is

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Inversely proportional to both r and v

Directly proportional to both r and v

Directly proportional to r but inversely proportional to v

Inversely proportional to r but directly proportional to v

In relation Vt = 2gr²ρ/9η. Terminal velocity is directly proportional to

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r

r²

r³

None of these

Which of the following is not a perfectly inelastic collision?

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Striking of two glass balls

A bullet striking a bag of sand

An electron captured by a proton

A man jumping onto a moving cart

The triple point of water is

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100°C

0K

0°C

273.16K

Name of projectile is the same for the following pair of angles:

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0° and 45°

35° and 55°

15° and 60°

30° and 75°

The eye piece of a compound microscope acts as a

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Diverging lens

Converging lens

Diverging mirror

Converging mirror

Angular acceleration is produced in a body by the physical quantity called

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momentum

vibration

torque

centrifugal force

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