Question # 1

Phosphorous.... and sulphur 35 are employed on living system to trace metabolic path.

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31

30

38

32

The Phenomenon of emission of radiations from radioactive elements is called:

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Doping

Allotropy

Radioactivity

Induction

When a ray of light passes from a denser to a rare medium it;

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bends away form the normal to the interface

bends towards the normal

does no bend

non of the above

Emission of ratiations from nucleus is said to be

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Chemical reaction

Atomic reaction

Radioactivity

Nuclear fission

In engineering department besides heavy machinery the role of ....... industry is examplary.

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Cottage

Steel

Electrical

Paper

The mass of Beta particle:

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0

4

2

1

The process of manufacturing food in pants;

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Respiration

Digestion

Fermentation

Photosynthesis

During the preparation of the juice of sugarcane is heated from:

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100°C to 110°C

100° to 120°

100°C to 130°C

100°C to 140°C

Which of the following is a natural fiber:

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Teflon

Cotton

Acrylic

Nylon

Recording of electrical activity of brain is said to be:

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ultrasound

MRI

E.E.G

E.C.G

Frequency of ultrasound is.

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Less than 20 Hz

20 KHz

30 KHz

More than 20 khn

Which radiation have zero mass number

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Alpha radiation

Beta ratiation

Gamma radiation

None of these

Which type of rays are used in the solar system fitted on ships and submarines to find the hidden secrets under water:

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x - rays

C.T Scan

Ultrasound

Light

What discovered radioactivity?

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Einstein

Newton

J.J. Thomson

Henry Becquerel

Laser surgery is of special importance in

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heart operation

kidney operation

liver operation

cancer operation

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