Question # 1

The lower reading of blood pressure is called.

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Systolic pressure

Diastolic pressure

Normal pressure

Non normal pressure

The speed of light was measured correctly by

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Galileo

Michelson

Newton

Maxwell

Maximum number of components of a vector may be

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Infinite

One

two

three

The amount of inertia of 10 kg hoop about the axis of rotation perpendicular to its plane having radius 5 m is

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50 kgm2

100 K gm2

150 K gm2

250 K gm2

The concentration of red blood cells in the blood is nearly.

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40%

60%

25%

50%

The focal length of convex lens

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Negative

Positive

small

Large

The value of angular momentum is maximum when 0 is

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90^o

60^o

75^o

45^o

A body of mass 2 kg moving with velocity of 4 ms-1 has K.E. equal to.

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16 J

8 J

32 J

2 J

No spark plug is needed in the

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Petrol engine

Diesel engine

Gas engine

Water engine

The moment of inertia is analogue to

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Mass

Weight

Torque

Force

When a particle is moving along a circular path its projection along the diameter executes

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Linear motion

Vibratory motion

Rotatory motion

SHM

If the radius of droplet becomes half, then its terminal velocity will become.

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Double

Half

One fourth

Remains same

Average acceleration is a

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Scalar quantity

Vector quantity

(-) ve quantity

None of these

The SI unit of intensity of light is

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Joule

Mole

Candila

Kilomole

The angle of projection for which its maximum height and horizontal range are equal

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46 ^o

56^o

66^o

76^o

A body has P.E. = mgh, when it is at height 'h' from the ground. At the point at the distance 'x' below from the top its P.E. with

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mgh

mgx

mg(x-h)

None of these

If amplitude of a simple pendulum is increased by 4 times the time period will be.

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Four times

Half

Same

Two times

Bio mass is converted into fuel by

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Evaporation

Fermentation

Reflection

Scattering

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