Question # 1

X-ray diffraction has been very useful in determining the structure of

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Hemoglobin

Stars

Galaxies

Stones

The SI unit of flow rate are

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m-sec^-2

m³-sec^-1

m³-sec^-2

m-sec^-3

Oscillation of shock absorber of a car is practical example of.

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simple harmonic motion

Forced oscillation

Damped oscillation

Undamped oscillation

When newton ring are seen through the transmitted light, then central spot is.

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Dark

Blue

Bright

Red

A force of 10 N acts on a body of mass 5 kg in one second. The change in its momentum will be.

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10 kgms-1

50 kg ms-1

2 kg ms-1

20 kg ms-1

The weight of an object an elevator moving down with an acceleration of 9.8 m/s2 will becomes

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Half

Double

Unchanged

Zero

The motion of a body moving along a circular path is called.

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Translational motion

Angular motion

Vibratory motion

Linear motion

A force applied on a body produces acceleration in

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Opposite direction

perpendicular direction

Its own direction

In any direction

Speed of sound in copper is

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38000 ms-1

3600 ms-1

3500 ms-1

3400 ms-1

The speed of sound in air would become double than ots speed at 10^oC at a temperature of.

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313 ^oC

586 ^oC

859^oC

899 ^oC

The distance covered by wave in 1 sec is

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wavelength

Wave number

Wave speed

Frequency

The pitch of sound deepens upon

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Intensity of sound

Loudness of sound

Wavelength of sound

Frequency of sound

Which of the following is not directed along the fixed axis of rotation.

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Angular displacement

Angular momentum

Centripetal acceleration

Angular acceleration

Venturimeter is used ot measure.

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Speed of fluid

Pressure of fluid

Volume of fluid

Mass of fluid

When two identical waves superimposed, which can change.

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Wave length

Frequency

Velocity

Amplitude

Huygen's proposed, light energy travels in space from source in

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1578

1678

1778

1868

The lower reading of blood pressure is called.

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Systolic pressure

Diastolic pressure

Normal pressure

Non normal pressure

The dimension of power are

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[ML2T-3]

[ML2T-2]

[MLT-1]

None of these

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