Question # 1

By CAT scans, we can detect the density difference of the order of:

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1%

20%

30%

50%

70%

Acceleration of a body is positive, if the velocity of the body is

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constant

increasing

decreasing

none of them

Addition of 2.189 kg, 11.8 kg and 5.32 kg gives the rounded off answer as:

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19.398

19.400

19.4

19.3

Victor de-Brogile received the Nobel prize in physics in

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1925

1929

1932

1935

Peak value of alternative current is:

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one of its Instantaneous value

Equal to its RMS value

The same as its peak-to-peak value

Both (B) and (C)

None of these

The commercial unit of electrical energy is :

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K Watt

KWH

Horse power

Joule

Physics deals with the study of

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Matter

Energy

Both of them

Human Body

When either L or C is increased, the resonant frequency of the RLC series circuit

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Increases

Decreases

Remains the same

Becomes zero

Drag force increases if speed of the object moving through the fluid:

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Increases

Decreases

Remains constant

None of these

One coulomb per second is equal to

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One volt

One ampere

One hom

One henry

The closed loop gain of the inverting amplifier is written as

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G = R₂/R₁

G = 1 + R₂/R₁

G = -R₂/R₁

G = 1 - R₂/R₁

The Dimensions of volume is

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[V³]^-1

[L^-3]

[L]³

None of these

When a body is moving with uniform positive acceleration, the velocity-time,then the body is said to have

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uniform deceleration

uniform negative acceleration

average acceleration

uniform positive acceleration

Slope of displacement time graph gives

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Instantaneous velocity

Instantaneous acceleration

Work done

Force

The measure of the deformation in a solid when stress in applied to it is called

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elastic constant

Young's modulus

strain

elasticity

Ordinary light has components of vibrations in

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one direction only

two directions

four directions

all directions

The perpendicular distance from the axis of rotation to the line of the action of force is called

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Linear distance

Angular distance

Momentum arm

None of these

The temperature of sun is measured with

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Platinum thermometer

Gas thermometer

Vapour pressure thermometer

Pyrometer

A lens of 2 cm focal length is to be used as a magnifying glass. Its magnification is

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13.5

12.5

0.5

2.5

If the velocity of a body changes by equal amount in equal intervals of time, the body is said to have

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acceleration

uniform acceleration

instantaneous acceleration

uniform velocity

The burnt gas expelled from the rocket engine with

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High velocity

Extremely high velocity

Very high velocity

None of these

The rain drop falling from the sky reach the ground with

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Constant terminal velocity

Constant gravitational acceleration

Variable acceleration

Acceleration greater than g

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