Questions

Q:

A ball is thrown vertically upward from the ground. It crosses a point at the height of 25 m twice at an interval of 4 seconds. The ball was thrown with the velocity of

A) 18 m/s B) 25 m/s
C) 30 m/s D) 36 m/s
 
Answer & Explanation Answer: C) 30 m/s

Explanation:

The interval between object pass the same point is 4 sec.

That means in 2 sec, object reaches the top and in next 2 sec, it again reaches the same point.

By the info given, we can find the velocity of that point by using : v=u+(-gt)

0= u - 10×2

u = 20

Then the velocity at 25m is 20m/sec.

so the initial velocity is


-v2 = u2 + (-2gh)400 = u2 - 2x 10 x 25u2 = 900 => u = 30 m/s

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Filed Under: Physics
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Q:

Solve the Riddle?

bana1522056999.jpg image

A) 79 hrs B) 72 hrs
C) 52 hrs D) 18 hrs
 
Answer & Explanation Answer: D) 18 hrs

Explanation:

From the given data,

18 snakes can eat 18 bananas in 18 hrs.

=> 1 snake can eat 1 banana in 18 hrs

=> 79 snakes can eat 79 bananas in 18 hrs.

 

Hence, 18 hrs.

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Q:

The Indus valley people traded with the

A) Chinese B) Mesopotamians
C) Parthians D) Romans
 
Answer & Explanation Answer: B) Mesopotamians

Explanation:
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Filed Under: Indian History

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Q:

Systematic name for (CuI)s ?

A) Copper Iodide B) Cobalt Fluoride
C) Ferrous Oxide D) All of the above
 
Answer & Explanation Answer: A) Copper Iodide

Explanation:

Copper Iodide is the systematic name of the given compound (CuI)s.

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Filed Under: Chemistry
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Q:

What skills are important for a successful career in fashion design?

Answer

Designers have to either combine marketing intelligence and artistic vision themselves, or be able to delegate business duties to hired specialists, agents, etc. while they focus on the art.

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Q:

'World Diabetes Day' is observed on

A) August 4 B) August 1
C) July 29 D) June 27
 
Answer & Explanation Answer: D) June 27

Explanation:
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17 8883
Q:

Explain Adventure tourism, Attraction, Amenities, Back of the house.

Answer

Adventure tourism : to convert the adventure into pleasure for the purpose of tourism business


Attraction : Anything/object/activity, which attracts tourists and attach with it.


Amenities : Extra facilities, service added with attraction, accessibility and accommodation to create tourism. It includes trust, friendship, hospitality, etc.


Back of the house : Staffs who are not directly involved in providing service. Guests rarely interact with them

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Subject: Hospitality

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Q:

In which state was the Nalanda University located in India

A) Bengal B) Bihar
C) Orissa D) Uttar Pradesh
 
Answer & Explanation Answer: B) Bihar

Explanation:
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Filed Under: Indian History

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