Question # 1

The dimensions of viscosity are:

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M²L^-1T^-2

M^-1L¹T^-1

M^-1L^-1T

ML^-1T^-1

The Einstein's changes in length, mass and time are not observed in common life because

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We dont observer then seriously

The masses are too large

Their speed is too small than the speed of right

All of the above

The restoring force is ______ amd opposite to the applied force within _____:

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Equal, elastic limit

Different, the walls of the laboratory

Different, elastic limit

None of these

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

Centripetal acceleration is also called ______ acceleration:

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Tangential

Radial

Angular

None of them

An induced current can be produced by:

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Constant magnetic field

Changing magnetic field

Varying magnetic feild

Constant electric field

None of these

Examples of moderators used in a fission reactor is/are:

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Water

Heavy water

Carbon

Hydrocarbon

All of these

The total energy of spring mass system is

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zero

changing with time

constant

none of them

A photon is considered to have

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Momentum

Energy

Wavelength

All of the above

The statement "the electric force of repulsion or attraction between two point charges is directly proportional to the product of the charges and inversely proportional to square of the distance between them" refer to

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Coulomb's law

Gauss's law

Biot-Sarwat law

Ampere's law

To see the minor details of the object by microscope, it should have:

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High magnifying power

High resolving power

Am objective of larger focal length

None of these

An instrument called a sphygmomanometer measure

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Density of water

Blood pressure

Milk density

None of these

The property of light which makes light possible to be transmitted into inaccessible place is

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Interference

Diffraction

Polarization

None of these

Basic principle of an optical fibre is

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Reflection

Scattering

Polarization

Total internal reflection

Source of light used in the fibre optic communication

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Led

Laser

Photo diode

Both a and b

Prefix pico stands for

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10^-9

10^-6

10^-15

10^-12

In a semiconductor,the mobility of holes is

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Greater then electrons

Less than electrons

Equal to electrons

None

The fluid which is incompressible and have streamline flow is called _________ fluid

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Ideal

Viscous

Non ideal

None of these

No of spark plugs needed in diesel engine is:

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Four

Five

Six

None of these

Which of the given pair have same dimension

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Stress, pressure

Elastic modules, pressure

Stress, elastic modules

All have same dimension

Amorphous solids are called

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Polymeric

Crystal

Glassy solids

All

The vertical velocity component changes with

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Distance

Time

Height

Angle

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