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Q:

Rain drops acquire spherical shape due to 

A) viscosity B) surface tension
C) friction D) elasticity
 
Answer & Explanation Answer: B) surface tension

Explanation:

The Surface tension pulls the surface of the drop equally at all points thus produces the spherical shape having the minimum surface area. This surface tension is the "skin" of a body of water that makes the molecules stick together.

                                 Rain_drops_acquire_spherical_shape_due_to1558074071.png image 

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Filed Under: Physics
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Q:

A boy sitting in a train moving with a uniform velocity drops a coin outside. A man standing outside the train will find the trajectory of the coin to be

A) a parabola B) a circle
C) a horizontal straight line D) a vertical straight line
 
Answer & Explanation Answer: A) a parabola

Explanation:

Parabola, because when the coin is dropped at a particular point, it has the same velocity as the running train. So by Newton's first law, it continues its motion horizontally with that velocity. But then, it is also pulled down by earth's gravity continuously. In this situation its horizontal motion gives way to the parabolic motion until it reaches the ground.

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Filed Under: Physics

Q:

The Dowry Prohibition (Amendment) Act came into force from __________

Answer

The Dowry Prohibition (Amendment) Act came into force from october2, 1985. This made the original Act more stringent and effective.

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Subject: General Awareness

Q:

which city has the Metro with Most stations?

Answer

New York City Subway has 468 stations (277 of which are under ground) in a network covering 370 km (230 miles)

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Subject: General Awareness

Q:

Estate Duty was introducded in ________

Answer

Estate Duty which was introduced in 1953, was withdrawn from March 1, 1985.

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Subject: General Awareness

Q:

The world's Largest Shopping Centre is __________

Answer

The Dubai Mall, located in downtown Dubai, UAE, consists of four levels with a floor area of 548,127  (5.9 million ) and has 1,200 retail outlets and over 160 food and beverage outlets. Construction began in 2004, with the mall opening its doors on 4 November 2008. 

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Subject: General Awareness

Q:

The Busiest Metro Station in the world _________

Answer

Shinjuku Station in Tokyo, Japan, has an average of 3.64 million passengers pass through it each day. It has more than 200 exits.

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Subject: General Awareness

Q:

City with Most Billionaries in the world______

Answer

According to Forbes, the Russian capital Moscow currently boasts an unprecedented 84 billionaries. Between them, the Moscow billionaries share a total of $366 billion. 

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Subject: General Awareness