Question # 1

The closed loop gain of the non-inverting amplifier is given by

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G = R₂/R₁

G = -R₂/R₁

G = 1 - R₂/R₁

G = 1 + T₂/R₁

Work is always done on a body when:

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A force acts on it

It moves through certain distance

None of A or B is correct

Both A and B is correct

Which one of the following wave motions is transverse:

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Wave motion produced in water when a piece of stone is thrown into it

Pulling of weight hanging vertically with a spiral spring

Both of these

None of these

If we draw a graph between d (along x-axis) and F (along y-axis) and get a straight line horizontal to x-axis, then area under this straight line represents:

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Power

Work

Pressure

None of these

If the distance between two charges is doubled,the force between them will become:

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Double

Half

One third

One fourth

The work done moving a body between two points in a conservation field is independent of the:

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Direction

Force applied

Path followed by the body `

Power

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

A massive object falls through a fluid:

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Faster

Slower

Slowest

None

A 120 m long train is moving in a direction with speed 20 m/s. A train B moving with 30 m/s in the opposite direction and 130 m long crosses the first train in a time

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6 s

36 s

38 s

None of these

Neutrons are

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positive charge

negatively charged

massless

neutral

Electric field strength is defined as

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Work done on unit charge

Force exerted on unit charge

Distance covered by unit charge

Power exerted by unit charge

None of these

The waves produced in a stretched string are called

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Stationary waves

Mechanical waves

Transverse mechanical waves

None of these

The atoms or molecules in a crystalline solid are held together by

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Attractive force

Gravitational force

Cohesive force

Electromagnetic force

At constant temperature, if the density of the gas is increased, its pressure will:

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Decrease

Increase

Remain unchanged

None of these

Newtons third law also says that action and reaction forces always act on the

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Different bodies

Same bodies

Only one body

None 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

The Bernoulli's equation often expressed in

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The Dimension of acceleration is

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[L²T]

[LT²]

[LT^-2]

None of these

Which property of waves proves that light is a transverse wave?

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diffraction

interference

polarization

reflection

Compton Effect makes the use of the law of conservation of:

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Energy

Momentum

Charge

Both (a) & (b)

At high altitude the blood oozes out of the nose and ear because

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The blood pressure increase at high altitudes

The percentage of oxygen in the air increase

The atmospheric pressure decreases

The density of blood decrease at high altitudes

A man fires a bullet of mass 200 g at a speed of 5 m/s.The gun is of one kg mass.by what velocity the gun rebounds backwards?

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0.1 m/s

10 m/s

1 m/s

0.01 m/s

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