Q:

When an object is thrown vertically upwards, at its maximum height its _____________.

A) potential energy is zero	B) momentum is maximum
C) kinetic energy is zero	D) gravitational force is maximum

Answer & Explanation Answer: C) kinetic energy is zero

Explanation:

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Filed Under: Physics
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Q:

Select the synonym of

confuse

A) explicate	B) perplex
C) mix	D) divert

Answer & Explanation Answer: B) perplex

Explanation:

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Q:

The Rigvedic God Varuna was

A) Harbinger of peace	B) Destoyer of foes
C) Guardian of the cosmic order	D) God of prosperity

Answer & Explanation Answer: C) Guardian of the cosmic order

Explanation:

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Filed Under: Indian History

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Q:

Valency of an element depends on which of the following?

I. Number of losing electron

II. Number of gaining electron

III. Number of sharing electron

A) Only I and II	B) Only I and III
C) Only II and III	D) All I, II and III

Answer & Explanation Answer: D) All I, II and III

Explanation:

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Q:

Which of the following statement is true?

A) Cohesion is the OO principle most closely associated with hiding implementation details	B) Cohesion is the OO principle most closely associated with making sure that classes know about other classes only through their APIs
C) Cohesion is the OO principle most closely associated with making sure that a class is designed with a single, well-focused purpose	D) None

Answer & Explanation Answer: C) Cohesion is the OO principle most closely associated with making sure that a class is designed with a single, well-focused purpose

Explanation:

A refers to encapsulation, B refers to coupling

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Q:

Improve the bracketed part of the sentence.

Happy is the man (who acquired) the habit of reading when he is young

A) who acquires	B) which was acquiring
C) who acquire	D) No improvement

Answer & Explanation Answer: C) who acquire

Explanation:

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Q:

The reduction potential of hydrogen half-cell will be negative if :
(1) $P (H_{2})$ = 2 atm and [H+] = 2.0 M
(2) $P (H_{2})$ = 1 atm and [H+] = 2.0 M
(3) $P (H_{2})$ = 1 atm and [H+] = 1.0 M
(4) $P (H_{2})$ = 2 atm and [H+] = 1.0 M

A) Option 1	B) Option 2
C) Option 3	D) Option 4

Answer & Explanation Answer: D) Option 4

Explanation:

$H^{+} - e^{-} \to \frac{1}{2} H_{2}$

Apply Nernst equation

$E = 0 - \frac{0.059}{1} \log (\frac{P H_{2}^{\frac{1}{2}}}{[H^{+}]})$

$E = - \frac{0.059}{1} \log (\frac{2^{\frac{1}{2}}}{1})$

Therefore E is Negative

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Filed Under: Chemistry
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Q:

Choose the correctly spelt word

The threat of an epidemic caused great alarm and

A) Trepidation	B) Terpidation
C) Trepidition	D) Trepidattion

Answer & Explanation Answer: A) Trepidation

Explanation:

Trepidation is spelt correctly which means a feeling of fear or anxiety about something that may happen.

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