General Knowledge Practice Question and Answer

Q:

The capacity of parallel plate condenser is dependent on the

435 0

  • 1
    The separation between the plates
    Correct
    Wrong
  • 2
    The metal used for the construction
    Correct
    Wrong
  • 3
    The thickness of the plate
    Correct
    Wrong
  • 4
    The potential applied across the plates
    Correct
    Wrong
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Answer : 2. "The metal used for the construction"
Explanation :

Therefore, the capacity of a parallel plate capacitor directly depends on the relative permittivity of dielectric material, the permittivity of space, the area of plates, and is inversely dependent on the separation between the plates.

Q:

What happens to the force acting between the charged particles, if the distance between these charged particles is halved?

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  • 1
    It increases by four times
    Correct
    Wrong
  • 2
    It gets doubled
    Correct
    Wrong
  • 3
    It becomes half
    Correct
    Wrong
  • 4
    It reduces by one-fourth
    Correct
    Wrong
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Answer : 1. "It increases by four times "
Explanation :

So, when the distance between the two charges is halved, the force is increased four times.


Q:

What is the constant of proportionality of an oscillator if the damping force is directly proportional to the velocity

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  • 1
    Kg.s-1
    Correct
    Wrong
  • 2
    Kg.m.s-1
    Correct
    Wrong
  • 3
    Kg.s
    Correct
    Wrong
  • 4
    Kg.m.s-2
    Correct
    Wrong
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Answer : 1. "Kg.s-1"
Explanation :

The damping force of an oscillating particle is observed to be proportional to velocity. The constant of proportionality can be measured in. kgs−1.

Q:

Find the molecular mass of a gas that takes three times more time to effuse as compared to He with the same volume

426 0

  • 1
    9 u
    Correct
    Wrong
  • 2
    64 u
    Correct
    Wrong
  • 3
    27 u
    Correct
    Wrong
  • 4
    36 u
    Correct
    Wrong
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Answer : 2. "64 u"
Explanation :

Its molecular mass will be: 64u.

Q:

The coefficient performance of a refrigerator is 5. If the temperature inside the freezer is -20℃, calculate the heat rejected to the surrounding

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  • 1
    110C
    Correct
    Wrong
  • 2

    410C

    Correct
    Wrong
  • 3

    210C

    Correct
    Wrong
  • 4

    310C

    Correct
    Wrong
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Answer : 1. "110C"
Explanation :

A heat pump is a heat engine working in reverse direction. A refrigerator is basically a heat pump, which is used to pump heat (absorbed from materials at lower temperatures inside the refrigerator) to the surroundings at higher temperatures. The coefficient of performance of a refrigerator is defined as the ratio of heat removed

Why

2

Energy from inside the refrigerator per cycle

w

given per cycle for heat removal,

α

,

Why

2

,

w

,

Q:

Which of the following elements has the largest atomic radii?

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  • 1
    Beryllium
    Correct
    Wrong
  • 2
    Lithium
    Correct
    Wrong
  • 3
    Nitrogen
    Correct
    Wrong
  • 4
    Carbon
    Correct
    Wrong
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Answer : 2. "Lithium"
Explanation :

Francium (Fr) has the highest atomic radius in the periodic table. It belongs to the alkali metals group. Its atomic number is 87. The periodic trend of atomic radius suggests that the atomic radius usually decreases along a period (left to right) and increases down a group (top to bottom).

Q:

Who has become the first woman sniper of the Border Security Force (BSF)?

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  • 1
    Shaliza Dhami
    Correct
    Wrong
  • 2
    Shiva Chauhan
    Correct
    Wrong
  • 3
    Deepika Mishra
    Correct
    Wrong
  • 4
    Suman Kumari
    Correct
    Wrong
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Answer : 4. "Suman Kumari"
Explanation :

Border Security Force (BSF) sub-inspector Suman Kumari has become the first woman sniper of the Border Security Force. Suman recently completed an eight-week sniper course at the Central School of Weapons and Tactics (CSWT), Indore and achieved 'Instructor Grade'. Suman is a resident of Mandi district of Himachal Pradesh. She joined BSF in the year 2021.

Q:

Who wrote "Unhappy India"?

16618 6

  • 1
    Bal Gangadhar Tilak
    Correct
    Wrong
  • 2
    Lala Lajpat Rai
    Correct
    Wrong
  • 3
    Surrendranath Banerjee
    Correct
    Wrong
  • 4
    Dadabhai Naoroji
    Correct
    Wrong
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Answer : 2. "Lala Lajpat Rai"
Explanation :

(B) Lala Lajpat Rai

"Unhappy India" was written by Lala Lajpat Rai, a prominent Indian author and politician who played a significant role in the Indian independence movement. The book was published in 1928 and addressed various issues and challenges facing India during that time, expressing concerns about the impact of British colonial rule.

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