Question # 1

Which one of the followign Muslim mathmatision determined the earths circumference.

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Al Beruni

Ibn Sina

Al Khawrizmi

None of these

A collision in which K.E. of the system is not conserved is

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Elastic collision

Inelastic collision

3rd low of motion

None of these

Turning of radio is example of.

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Mechanical resonance

Electrical resonance

Physical resonance

Biological resonance

A ray of light shows the direction of propagation of light It is line which is.

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Normal to the wave front

Parallax to the wave front

Opposite to the wave front

Equal to the wave front

Bunsen burner works on the principle of.

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Venturi effect

Terricilli's effect

Bernoulli's effect

None of these

The SI unit of angular momentum is

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J.S-2

J.S-1

J.S

J.m

The dot product of two vectors A and B will be zero, if angle between A and B is

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Zero

30^o

90^o

180^o

A spring of spring constant 10 N/m after loading that amplitude is 2m. Then the maximum P.E. is

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10 J

20 J

30 J

40 J

Star moving towards the earth show

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Red shift

Blue shift

Green shift

Yellow shift

The focal length of convex lens

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Negative

Positive

small

Large

No body begins to move or comes to rest of itself was given by

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Newton

Pascal

Bernoulli

Bu Ali Sina

A body covers a distance of 10 m in 1 sec with a constant velocity of 10 ms-1 , Acceleration produced by the body is.

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0 ms-1

2 ms-2

5 ms-2

10 ms-2

The optical fibre is covered for protection by

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Glass jacket

Plastic jacket

Steel jacket

Diamond jacket

The light energy travels in space as waves was firstly proposed by

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Maxwell

Young

Einsten

Hydrogen

The instrument which detects the instant as which the external pressure becomes equal to the systolic pressure is called.

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Manometer

Sphygmomanometer

Barometer

Stethoscope

Sound wave can not be

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Reflected

Refracted

Diffracted

Polarized

When hot and cold water are mixed, the entropy.

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Decreases

Increases

Remain constant

Zero

Head to tail rule is used for

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Addition of vectors

Subtraction of vectors

Multiplication of vectors

Division of vectors

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