Q:

Device used for the detection and measurement of all types of radiation (alpha, beta and gamma)

A) Geiger counter	B) Polarimeter
C) Calorimeter	D) Radiometer

Answer & Explanation Answer: A) Geiger counter

Explanation:

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Q:

Light travels fastest in

A) Nitrogen	B) Air
C) Steel	D) Vacuum

Answer & Explanation Answer: D) Vacuum

Explanation:

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Q:

Who first determined the value of G (gravitational constant)?

A) Lord Cavendish	B) R.R Heyl
C) Boyle	D) Poynting

Answer & Explanation Answer: A) Lord Cavendish

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Q:

A Sonar of a ship sends sounds waves of speed 1500 m/s. These waves are reflected back by the ocean floor in 5 seconds. Find the depth (in m) of the ocean floor.

A) 3750	B) 7500
C) 1875	D) 5000

Answer & Explanation Answer: A) 3750

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Q:

Who appoints the Finance Commission in India?

A) Governor,R.B.I	B) CAG of India
C) President of India	D) Central Finance Minister

Answer & Explanation Answer: C) President of India

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Q:

Tsunami waves are the undersea occurrence of earthquake exceeding 7.5 on Richter scale. Which one of the following statements regarding this is not correct?

A) It often generates strong waves	B) The pacific coasts are most vulnerable to Tsunami waves.
C) Tsunami waves are also called high-energy tidal waves or seismic sea waves.	D) Tsunami is a Latin word.

Answer & Explanation Answer: D) Tsunami is a Latin word.

Explanation:

All are correct except D, as Tsunami is a Japanese word

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Q:

Any undesirable change in physical, chemical or biological characteristics of air, land, water or soil is called?

A) Greenhouse effect	B) Solid wastes
C) Pollution	D) Deforestation

Answer & Explanation Answer: C) Pollution

Explanation:

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Q:

How many members of upper house (Rajya Sabha) can be nominated by President of India?

A) 10	B) 11
C) 12	D) 15

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