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Q:

In a Cinema hall, the distance between the projector and the screen is increased by 2%. Then the intensity of illumination on the screen is 

A) decreased by 2% B) decreased by 4%
C) increased by 2% D) increased by 4%
 
Answer & Explanation Answer: B) decreased by 4%

Explanation:
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Filed Under: Physics

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Q:

Whose period was known as the Golden Age of Rome?

Answer

 Augustus Caesar

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Subject: World History

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Q:

The stupa site which is not connected with any incident of lord Buddha's life is

A) Sarnath B) Bodh Gaya
C) Sanchi D) Kushinagar
 
Answer & Explanation Answer: C) Sanchi

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Filed Under: Indian History

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Q:

Who of the following was awarded ' Bharat Ratna ' posthumously

A) Dr.S.Radhakrishnan B) Mother Teresa
C) Jayaprakash Narayan D) Khan abdul Ghaffar Khan
 
Answer & Explanation Answer: C) Jayaprakash Narayan

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Filed Under: Honours and Awards

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Q:

ESCAP stands for

A) Economic and Social Commission for Asia and Pacific B) European Society Council for Africa and Pacific
C) Economic and Social Commission for Africa and Pacific D) None of the above
 
Answer & Explanation Answer: A) Economic and Social Commission for Asia and Pacific

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Filed Under: General Awareness

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Q:

____ is not a type of heat transfer.

 

A) Diffusion B) Reflection
C) Convection D) Radiation
 
Answer & Explanation Answer: B) Reflection

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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

Select the synonym of

gripe

A) To grieve B) To grasp
C) To flatter D) To hold
 
Answer & Explanation Answer: A) To grieve

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Filed Under: English
Exam Prep: Bank Exams

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Q:

A standing wave occurs when

A) a wave reflects upon itself B) the amplitude of a wave exceeds its wavelength
C) two waves overlap D) the speed of the wave is zero or near zero
 
Answer & Explanation Answer: A) a wave reflects upon itself

Explanation:

A standing wave also known as a stationary wave, is a wave in which its peaks or any other point on the wave do not move spatially.

This phenomenon can occur because the medium is moving in the opposite direction to the wave, or it can arise in a stationary medium as a result of interference between two waves traveling in opposite directions. The most common cause of standing waves is the phenomenon of resonance, in which standing waves occur inside a resonator due to interference between waves reflected back and forth at the resonator's resonant frequency.

 

Hence, standing wave occurs when a wave reflects upon itself.

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Filed Under: Physics
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