Question # 1

What is the pathogen that causes acne?

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Proionibacterium

Sterptococcus

Stapyloccus

Mycobacterium

An optical gauge working on the principle of

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Interference of light

Reflection

Dispersion

Polarisation

Which one of the following elements extensively used in electronics?

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Zironium

Silicon

Selenium

Sodium

Which law is involved in the act of cleaning a carpet by beating it with a stick?

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First law of motion

Second law of motion

Law of conservation of energy

Law of conservation of mass

We lose consciousness if the blood flow to the brain is cut off more than

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2 seconds

5 seconds

15 to 20 seconds

5 minutes

The samllest practical unit time:

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Sec

Millisec

Microsec

Shake

The study of nervous system and its disorder is called?

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Urology

Haeatology

Neurology

Herpentology

Glycol is added to aviation gasoline because it:

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Prevent s freezing of Petrol

reduces consumption o9f petrol

reduces evaporation of petrol

increase efficiency of petrol

When a ray of light is going from one medium to another, its:

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Frequency remains same

Frequency increases

Wavelength

Wavelength remains same

Choose the source of energy which different form others

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Bio gas

Plants

Vegetable refuse

Crude oil

The metal, which is a constituent of vitamin B12, is

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Cobalt

Iron

Zinc

magnesium

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