Question # 1

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

Blood is an

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Compressible fluid

incompressible fluid

hard

none of them

When a conductor moved with its length parallel to the lines of magnetic fled:

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An emf is induced across its ends

Emf induced is similar to that of a battery

Emf passes through the conductor

Both A and B

None of these

Moment of inertia depends upon:

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Mass

Selection of axis of rotation

Both of them

None of these

Smaller the damping, greater will be the

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frequency

wavelength

amplitude

none of them

When the pn-junction is connected reversed biased, its resistance is of the order of

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few ohms

few kilo-ohms

few mega-ohms

few mili-ohms

The mass of an object will be doubled at speed

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1.6 x 10⁸ms^-1

2.6 X 10⁸ms^-1

2.6 x 10⁷ms^-1

2.6 x 10⁹ms^-1

Rate of decay is actually described by.

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Half line

Decay constant

Mean life

Total life

None of these

The Instantaneous value of alternative current maybe:

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The same as its RMS value

Greater than its Rms value

The same as its peak value

Any of these

None of these

The effect of applying a force on a moving body is to change

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its direction of motion only

its speed of motion only

both the direction and speed of motion

its inertia only

By which velocity a ball be projected vertically so that the distance covered by it in 5th seconds is twice the distance it covers in its 6th second ( g=10m/s²)

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58.8 m/s

49 m/s

65 m/s

19.6 m/s

The concentration of red blood cells in blood is

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~ 30%

~ 40%

~ 45%

~ 50%

By the fermentation of biomass using enzymes and by decomposition through bacterial action in the absence of air, we obtain

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Biogas

Ethanol

Benzene

None of these

Newton's first law of motion says a body will

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Remain at rest

Continuous move to with uniform velocity

Have no unbalanced external force act

All of these

A photo cell is based on:

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Compton effect

Pair production

Photo cell

All of these

The shearing strain is measured by

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Angle of rotation

Shearing stress

Angle of shear

Modulus of rigidity

Earth-Sun travel around the galaxy is

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220000 ms^-1

230000 ms^-1

210000 ms^-1

200000 ms^-1

How many fringes will pass a reference point if the moveable mirror of a Michelson s interferometer is moved 0.06 mm The wavelength of light used is 5.89 x10^-3 mm

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200

300

20.4

2.3

A body will be in translational equilibrium, if

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1750 Nm^-2

1980 Nm^-2

1975 Nm^-2

1999 Nm^-2

Which one of the following can act approximately as a source of monochromatic light

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Neon lamp

Fluorescent tube

Sodium lamp

none of these

Young's modulus for tungsten is

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90

190

390

590

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