Q:

In a hydrogen atom, an electron moves in an orbit of radius $5.0 x 10^{- 11}$ m with a speed of $2.2 x 10^{6}$ m/s. What is the equivalent current? (Electronic charge = $1.6 x 10^{- 19}$ C)

A) 0.112 mA	B) 112 mA
C) 11.2 mA	D) 1.12 mA

Answer & Explanation Answer: D) 1.12 mA

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Q:

What was the real name of Gautam Buddha?

A) Siddhartha	B) Mahendra
C) Shree Dutt	D) Vishal Dutt

Answer & Explanation Answer: A) Siddhartha

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Q:

Which one is not included in Non-Banking Financial Institutions (NBFIs)?

A) EXIM	B) SIDBI
C) NABARD	D) BOI

Answer & Explanation Answer: D) BOI

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Q:

In November 2017, who launched ‘Grahak Sadak Koyla Vitaran App’ that aims to benefit customers of Coal India Limited (CIL)?

A) R. K. Singh	B) Suresh Prabhu
C) Naredra Singh Tomar	D) Piyush Goyal

Answer & Explanation Answer: D) Piyush Goyal

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Q:

Which Vitamin is obtained from Sun rays?

A) Vitamin A	B) Vitamin C
C) Vitamin K	D) Vitamin D

Answer & Explanation Answer: D) Vitamin D

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Q:

Which of the following is not a component of Smog?

A) Volatile organic compounds	B) Nitrogen Oxide
C) Sulphur dioxide	D) Chlorine oxide

Answer & Explanation Answer: D) Chlorine oxide

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Q:

On a clean glass plate a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because ________

A) Mercury is a metal	B) Density of mercury is greater than that of water
C) Cohesion of mercury is greater than its adhesion with glass	D) Cohesion of water is greater than its adhesion with glass

Answer & Explanation Answer: C) Cohesion of mercury is greater than its adhesion with glass

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Q:

Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?

A) BBr3	B) NH3
C) CH2N2	D) CCl2F2

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