Q:

There are 15 protons and 22 neutrons in the nucleus of an element. What is its mass number?

A) 22	B) 7
C) 37	D) 15

Answer & Explanation Answer: C) 37

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Q:

What is the pH value of human blood?

A) 8.3	B) 6.8
C) 7.4	D) 6

Answer & Explanation Answer: C) 7.4

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Q:

Who invented the bifocal glasses?

A) Thomas Alva Edison	B) Benjamin franklin
C) Evangelista	D) Isaac Newton

Answer & Explanation Answer: B) Benjamin franklin

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Q:

Who won Nobel prize for Physics in 2015?

A) Hiroshi Amano	B) Takaaki Kajita
C) Isamu Akasaki	D) Makoto Kobayashi

Answer & Explanation Answer: B) Takaaki Kajita

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Q:

To whom the Nobel Prize in Physiology or Medicine 2016 was awarded?

A) David J. Thouless	B) Yoshinori Ohsumi
C) J. Michael Kosterlitz	D) Sir J. Fraser Stoddart

Answer & Explanation Answer: B) Yoshinori Ohsumi

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Q:

What is the reason for formation of Mirage in desert?

A) Refraction of light	B) Reflection of light
C) Total internal reflection of light	D) Both Refraction and Total internal reflection of light

Answer & Explanation Answer: D) Both Refraction and Total internal reflection of light

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Q:

The absolute refractive index of air is

A) 1.03	B) 1.00003
C) 1.003	D) 1.0003

Answer & Explanation Answer: D) 1.0003

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Q:

Study of earth is known as

A) Ecology	B) Biology
C) Ethology	D) Geology

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