Question # 1

For what work did Albert Einstein win his noble Prize in Physics?

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The photoelectric Effect

General Theory of Electricity

Electromagnetic Radiation

None of these

If the sun in shining brightly in one part of the sky after rain. how many rainbows are observed

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One

Two

Four

Infinite

A persicope works by the principle of

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Refraction

Total internal reflection

Diffraction

Reflection and refraction

Which of the following is essential for the formation of red blood cells?

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Vitamin C

Folic Acid

Calcium

Vitamin A

Which instrument is used for reproducing sound?

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Pyrometer

Phonograph

Potentiometer

Photometer

Grass looks green because:

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It absorbs all the colours in the spectrum except green

it absorbs only green form then spectrum

The eye absorbs green form the grass

it is good radiator

The vitamin useful in alcoholism is

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Floic acid

Thiamine

Pyridoxine

Ascorbic acid

Which of the following is not a genetic disorder?

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Down-syndrome

Hemophilia

Irritable Bowi syndromes (IBS)

Sickle cell anemia

Which endocrine gland produces melatonin?

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Pineal gland

Thymus

Pituitary gland

Adrenal cortex

Which of the following EM type have the highest energy levels

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Radio

Visible

X-rays

Infrared

Plant absorb most of the water needed by them through their

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Embryonic zone

Growing point

root hairs

zone of elongation

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