Question # 1

Body which falls freely under gravity provides good example of motion under:

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Uniform acceleration

Non-uniform acceleration

Uniform velocity

None of these

INTELSAT operates at frequencies 4, 6, 11, 14 having unit of:

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KHz

MHz

GHz

BHz

The decrease in velocity per unit time is called

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deceleration

acceleration

uniform acceleration

variable acceleration

When the total displacement is divided by total time taken, we get:

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Velocity

Average speed

Average velocity

None of these

For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as

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modification

voltage

current

resistance

The state in which ice, water and vapour coexists in equilibrium is called

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zero degree celsius

zero degree fahrenheit

absolute zero

373 K

According to the equation of continuity, when water falls from the tap, it's speed increases and its cross-sectional area

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decreases

increases

becomes zero

none of them

Which one is the least multiple

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Pico

Femto

Nano

Atto

The SI unit of flux density is.

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Tesla

Weber

Gaun

Weber/meter

A point charge A of charge +4μC and another B of charge -1μC are placed in air at a distance 1 m apart. Then the distance of the point on the line joining the charge B, where the resultant electric field is zero, is (in m)

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2

1

0.5

1.5

A capacitor of capacity 1μF is charged to 1 KV. The energy stored in J

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5

0.5

0.005

50

The regular array of atoms in a crystal has spacing of the order of

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10^-16m

10^-14m

10^-10m

10^-6m

Flux coming out from a unit positive charge placed in air is

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ε_°

ε_°^-1

(4πε_°)^-1

4πε_°

Angular velocity is proportional to

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1/r

1/r²

1/r⁵

Isothermal temperature Isobaric?

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Pressure

Volume

Heat

Entropy

To wavelength of light by his experiment , Newton utilized:

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Wavelength of light

Intensity of light

amplitude wave

None of above

Two sources of light are said to be coherent when the waves produced by them have

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Equal wavelength

Equal amplitude

Equal wavelength and constant phase difference

Amplitude and wavelength are same

Earth-sun travel around the galaxy is

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220000 ms^-1

230000 ms^-1

210000 ms^-1

200000 ms^-1

Maximum number of orders available with a grating is ______ grating element

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Independent of

Directly proportional to

Inversely proportional to

Equal to

The moment of inertia plays the same role in angular motion as in linear motion as

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Density

Weight

Mass

None of these

In bring an electron towards another electron,electrostatic potential energy of system.

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Decreases

Increases

Remains uncharged

Becomes zero

Which of the following quantities has not been expressed in proper units?

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Stress/Strain= Newton/metre²

Surface tension = Newton/metre

Energy = kg m/s

Pressure = newton/metre²

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