Questions

Q:

Brightness of bulb depends on voltage or current?

A) Current B) Voltage
C) Both A & B D) None
 
Answer & Explanation Answer: C) Both A & B

Explanation:

Brightness of bulb depends on both voltage and current. The brightness depends on power.

Since we know that  Power (P) = Voltage x Current = V I

So whether you increase the current or the voltage the brightness will increase.

 

Example Illustration:

 If you connect a long bulb and a round bulb in series, the long bulb glows but the round bulb does not. Both of them have the same current flowing through them (they are in series) but the long bulb has a greater voltage across it because it has more resistance (even though V= IR is not obeyed exactly, voltage drop does depend on the resistance). If you connect a round bulb and a long bulb in parallel, however, it is the round bulb that is brighter because now the voltage across both bulbs is the same but the current is larger through the round bulb (smaller resistance).

 

Hence, the brightness of a bulb depends on power i.e, both voltage and current.

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Filed Under: Physics
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Q:

Reang (Bru) tribe belongs to which Indian State?

 

A) Assam B) Tripura
C) Nagaland D) Meghalaya
 
Answer & Explanation Answer: B) Tripura

Explanation:
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Filed Under: Indian Geography
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Q:

Between small and large human intestine which one is longer?

 

A) small intestine B) Large intestine
C) Both are equal in length D) Depends on male or female
 
Answer & Explanation Answer: A) small intestine

Explanation:
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Filed Under: Inventions
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1 28097
Q:

Match the characteristics with their market structure:

(a) demand will tend to be inelastic
(b) Firm has control over quantity of output but it must take into account reactions of competitors

 

A) (a) Pure Monopoly, (b) Oligopoly B) (a) Pure Monopoly, (b) Monopolistic Competition
C) (a) Pure Competition, (b) Oligopoly D) (a) Monopolistic Competition, (b) Pure Competition
 
Answer & Explanation Answer: A) (a) Pure Monopoly, (b) Oligopoly

Explanation:
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Filed Under: Indian Economy
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1 28064
Q:

The First Mechanical Computer Designed by Charles Babbage was called?

A) Super Computer B) Abacus
C) Calculator D) Analytical Engine
 
Answer & Explanation Answer: D) Analytical Engine

Explanation:

Computer was invented by Charles Babbage.

The First Mechanical Computer Designed by Charles Babbage, a British mathematician was called as Analytical Engine which resembles today's modern machines  between 1833 and 1871.

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145 28038
Q:

Consider the following statements:

1. Inflation in India continued to be moderate during 2017-18

2. There was significant reduction in food inflation, particularly pulses and vegetables during the period.


Which of the statements given above is/are correct?

A) 1 only B) 2 only
C) Both 1 and 2 D) Neither 1 nor 2
 
Answer & Explanation Answer: C) Both 1 and 2

Explanation:

According to the Survey, inflation in the country continued to moderate during 2017-18 with the CPI based headline inflation averaging 3.3 per cent during the period --the lowest in the last six financial years

Retail inflation fell to a record low of 2.18% in May as prices of kitchen staples like vegetables and pulses declined sharply although there was a marginal spike in fruit rates.

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Filed Under: Indian Economy
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1 28005
Q:

The religion of early vedic Aryan was primarily of

A) Bhakti B) Image worship and Yajnas
C) worship of nature and Bhakti D) Worship of nature and Yajnas
 
Answer & Explanation Answer: D) Worship of nature and Yajnas

Explanation:
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Filed Under: Indian History

86 27949
Q:

Which of the following hills is situated in the southernmost part of India?

 

A) Nilgiri Hills B) Cardamom Hills
C) Palani Hills D) Anamalai Hills
 
Answer & Explanation Answer: B) Cardamom Hills

Explanation:
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