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Q:

Which one of the following statements is not correct?

A) The response of the ear to sound of increasing intensity is approximately logarithmic. B) The sensitivity of the human ear does not vary with the frequency of the sound.
C) When two or more waves traverse the same medium, the displacement of any element of the medium is the algebraic sum of the displacements due to each wave. D) Longitudinal waves can travel in all media-solids, liquids and gases.
 
Answer & Explanation Answer: B) The sensitivity of the human ear does not vary with the frequency of the sound.

Explanation:

The human ear can respond to minute pressure variations inthe air if they are in the audible frequency range, roughly 20 Hz -20 kHz. In fact, tests conducted show an increased sensitivity in the 3000 Hz range which is the optimal amplification frequency in the human ear. So, the sensitivity of the human ear varies with the frequency of the sound.

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Filed Under: Physics
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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:

Kutir Jyoti Scheme is associated with

A) Promoting cottage industry in villages B) Promoting employment among rural unemployed youth
C) Providing electricity to rural families living below poverty line D) All of these
 
Answer & Explanation Answer: C) Providing electricity to rural families living below poverty line

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Filed Under: Indian Politics
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Q:

In October 2017, how many companies were shortlisted for adoption of 14 monuments under ‘Adopt a Heritage Scheme’?

A) 6 B) 10
C) 7 D) 14
 
Answer & Explanation Answer: C) 7

Explanation:
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Filed Under: General Awareness
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Q:

Who is the Chief Executive Officer (CEO) of JP Morgan India as of February 2018?

A) Naina Lal Kidwai B) Kalpana Norparia
C) Shanthi Ekambaram D) Usha Ananthasubramanian
 
Answer & Explanation Answer: B) Kalpana Norparia

Explanation:
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Q:

Who among the following has been appointed as member in ‘Financial Stability Institute Advisory Board’ of ‘Bank of International Settlement (BIS)’?

A) Arvind Subramanian B) Amartya Sen
C) Raghuram Rajan D) Urjit Patel
 
Answer & Explanation Answer: D) Urjit Patel

Explanation:

The Reserve Bank of India (RBI) Governor Urjit Patel has been appointed as member in ‘Financial Stability Institute Advisory Board’ of ‘Bank ofInternational Settlement (BIS)’. The Advisory Board will comprise a small but diverse group of central bank Governors, heads of financial sector supervision and chairs of standard-setting bodies and regional supervisory groups.Note:The ‘Financial Stability Institute Advisory Board’ of BIS assists financial sector authorities worldwide in strengthening their financial systems.

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Q:

The method of soil conservation in which ploughing is done parallel to the contours of a hill slope to form a natural barrier for water to flow down the slop is called?

A) Mulching B) Contour barriers
C) Contour ploughing D) Terrace farming
 
Answer & Explanation Answer: C) Contour ploughing

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Q:

Which one of the following is India’s first indigenously designed and developed long-range subsonic cruise missile which can be deployed from multiple platforms?

A) Astra B) Akash
C) Nirbhay D) Shankhnaad
 
Answer & Explanation Answer: C) Nirbhay

Explanation:

Nirbhay missile is India's first indigenously designed and developed long range sub-sonic cruise missile.It is designed and made by DRDO (Defence Research & Development Organisation).The Nirbhay missile can be deployed from multiple platforms.

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