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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Q:

If the acceleration due to gravity on the surface of earth is g, then the acceleration due to gravity on the surface of a planet whose mass is double that of earth and radius is same as that of earth is _________________.

A) 2g	B) g
C) g/2	D) 4g

Answer & Explanation Answer: A) 2g

Explanation:

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Q:

In the following question, a word has been written in four different ways out of which only one is correctly spelt. Select the correctly spelt word.

A) Farenheit	B) Fahrenheit
C) Fahrenheight	D) Fahrenhist

Answer & Explanation Answer: B) Fahrenheit

Explanation:

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Q:

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

Irony. __________________word captures our response to the ongoing nationwide drought in more ways than one. We have woken _________ the reality of drought a full six months after the end of monsoon. After waking up, we focus ____________ the drinking water __________ in urban centres and not the multidimensional crisis of life and livelihood in _______________ hinterland.

multidimensional crisis of life and livelihood in _______________ hinterland

A) rustic	B) village
C) rural	D) urban

Answer & Explanation Answer: C) rural

Explanation:

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Q:

Which State has the longest coastline?

A) Andhra Pradesh	B) Maharashtra
C) Gujarat	D) Karnataka

Answer & Explanation Answer: C) Gujarat

Explanation:

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Filed Under: Indian Geography
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Q:

Hirakud reservoir is built across the river

A) Sutlej	B) Godavari
C) Mahanadi	D) Narmada

Answer & Explanation Answer: C) Mahanadi

Explanation:

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Q:

Economic planning in India is in____

A) Union List	B) State list
C) Concurrent List	D) None

Answer & Explanation Answer: C) Concurrent List

Explanation:

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Filed Under: Indian Economy

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Q:

If a chord of a circle subtends an angle of 30° at the circumference of the circle, then what is the ratio of the radius of the circle and the length of the chord respectively?

A) 1 : 1	B) 2 : 1
C) 3 : 1	D) √2 : 1

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