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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8 7827
Q:

Two bodies A and B are of same mass and same amount of heat is given to both of them. If the temperature of A increases more than that of B because of heat addition, then

 

A) the specific heat capacity of A is more than that of B B) the specific heat capacity of A is less than that of B
C) both A and B have the same specific heat capacity but A has greater thermal conductivity D) both A and B the same specific heat capacity but B has greater thermal conductivity
 
Answer & Explanation Answer: B) the specific heat capacity of A is less than that of B

Explanation:
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Filed Under: Physics

21 7825
Q:

The first Satyagraha campaign of Gandhiji was started at -

A) Bardoli B) Dandi
C) Champaran D) Baroda
 
Answer & Explanation Answer: C) Champaran

Explanation:
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Filed Under: Indian History
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16 7823
Q:

A button that makes characters either upper or lower case and numbers to symbols___

A) Shift B) Ctrl
C) Space bar D) Back space
 
Answer & Explanation Answer: A) Shift

Explanation:
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Filed Under: Computer
Exam Prep: Bank Exams

10 7822
Q:

Draw a Transmission Gate-based D-Latch?

Answer

The Transmission-Gate's input is connected to the D_LATCH data input (D), the control input to the Transmission-Gate is connected to the D-Latch enable inputs (EN) and the Transmission-Gate outputs is the D_LATCH output(Q)

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Subject: Hardware

6 7820
Q:

When designing the file structure for an operating system, what attributes are considered ?

Answer

Commonly, the different attributes for a file structure are naming,size, identifier, a level of protection, supported file types and location for the files.

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18 7816
Q:

Major fructose sources include

A) Fruit juices B) Corn syrup
C) Honey D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Major fructose sources include all fruits and honey.

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Filed Under: Biology
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7 7815
Q:

What is scientific name of " Tulsi " ?

A) Gossypium Herbaceum B) Ocimum Sanctum
C) Zea Mays D) Cojonus Cgjan
 
Answer & Explanation Answer: B) Ocimum Sanctum

Explanation:
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Filed Under: General Science
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43 7812