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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Q:

Which country’s Mars Digger probe named the ‘Mole’ was declared dead recently?

 

A) USA B) Israel
C) UAE D) China
 
Answer & Explanation Answer: A) USA

Explanation:
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Q:

What is the general formula of alkenes?

 

A) CnH2n B) CnH2n+2
C) CnH2n-2 D) CnH2n-1
 
Answer & Explanation Answer: A) CnH2n

Explanation:
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Q:

The recent trial run of 'odd-even' traffic scheme for Delhi was based on

 

 

A) odd-even calendar months B) odd-even calendar dates
C) vehicle registration numbers D) odd-even hours during 8 am to 8 pm
 
Answer & Explanation Answer: C) vehicle registration numbers

Explanation:
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Q:

The law of diminishing returns indicates that

 

A) always diminish B) eventually diminish
C) always diminish before increasing D) never diminish before increasing
 
Answer & Explanation Answer: B) eventually diminish

Explanation:
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Q:

In which of the following examples will an athlete have maximum accelerated motion?

 

A) Running on an octagonal track B) Running on a hexagonal track
C) Running on a rectangular track D) Running on a circular track
 
Answer & Explanation Answer: D) Running on a circular track

Explanation:
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Q:

The Standard of living in a country is represented by its

A) Poverty Ratio B) Per Capita Income
C) National Income D) Unemployment Rate
 
Answer & Explanation Answer: B) Per Capita Income

Explanation:
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Q:

Some Indian territory was transferred in 2015 to Bangladesh by following which procedure?

 

A) By an agreement between the Government of India and the Government of Bangladesh B) By a legislation passed by the Parliament amending Schedule 1 to the Constitution of India
C) By amending Schedule 1 to the constitution of India by exercising amending power of the Parliament  D) By amending Schedule 1 to the constitution of India by exercising amending power of the Parliament and ratification by sixteen State Legislatures
 
Answer & Explanation Answer: C) By amending Schedule 1 to the constitution of India by exercising amending power of the Parliament 

Explanation:

The 119th constitutional amendment bill 2013 sought to ratify the land boundary agreement between the two countries. This amendment needed special majority in the parliament to get passed. The bill proposed to amend the 1st schedule of the constitution to exchange the disputed territories occupied by both the nations in accordance with the 1974 bilateral LBA. Since, the law is not related to federal matters, only the approval of the Parliament is needed.

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