Questions

Q:

Mirage is an example of

A) Reflection of light & Refraction of light B) Dispersion of light
C) Total Internal Reflection D) Refraction of light & Total Internal Reflection of light
 
Answer & Explanation Answer: D) Refraction of light & Total Internal Reflection of light

Explanation:

A Mirage is a naturally occurring optical phenomenon in which light rays bend to produce a displaced image of distant objects or the sky.




      • It is caused due to Total internal Reflection.

 

      • It is an optical illusion observed in deserts or hot summer days due to which a person sees a pond of water some distance ahead of him in which the surrounding objects appear inverted.

Mirage_is_an_example_of1556276063.jpg image


How Mirage Forms::

 

1. The temperature of other layers of atmosphere goes on decreasing as we go up.
2. Therefore density and refractive index of air changes as one goes up.
3. Thus a ray of light,gets refracted more and more away from the normal.
4. At a particular angle when a ray of light exceeds critical angle, total internal reflection takes place and ray of light gets reflected in the same medium.
5. when the reflected ray reaches our eye, it appears as coming from tree or sky .
6. Hence the inverted image of tree creates an impression from a pond of water.

Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: GRE , GATE , CAT , Bank Exams , AIEEE
Job Role: IT Trainer , Bank PO , Bank Clerk , Analyst

49 14569
Q:

Rearrange the parts of the sentence in correct order.

 

P: Children with good manners are liked by one and all.
Q: They are appreciated even by strangers.
R: All round development of a child is possible only if a child is groomed in good manners.
S: Therefore, the public schools lay great emphasis on the cultivation of good manners in their students.

A) PQRS B) QPSR
C) RSQP D) SRPQ
 
Answer & Explanation Answer: A) PQRS

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: English
Exam Prep: Bank Exams

0 14568
Q:

Rearrange the following jumbled sentences to make a meaningful one

 

P - weather conditions across a vast geographic

Q - the climate of India

R - scale and varied topography

S - comprises of a wide range of

 

The proper sequence should be

 

A) SRQP B) QSPR
C) PQRS D) QRPS
 
Answer & Explanation Answer: B) QSPR

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: English
Exam Prep: Bank Exams , GRE , TOEFL

1 14564
Q:

The English Crown is an example of

A) Real executive B) Quasi-real executive
C) Normal executive D) Nominated executive
 
Answer & Explanation Answer: C) Normal executive

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Indian Politics

23 14529
Q:

Rearrange the parts of the sentence in correct order.

 

P: In addition, tsunamis move throughout the depth of the ocean and not just its surface.
Q A tsunami wave isn’t much different in height compared to other waves in the ocean.
R: That is why a tsunami generally goes unnoticed in the open ocean.
S: But, due to its wavelength, it "piles up" when it approaches land.

A) RSPQ B) PQRS
C) QSRP D) SRPQ
 
Answer & Explanation Answer: C) QSRP

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: English
Exam Prep: Bank Exams

0 14525
Q:

Improve the bracketed part of the sentence.

 

It is dangerous and harmful to be guided in our life’s course by hatreds and aversions, for they are wasteful of energy and limit and twist the mind, and prevent it (to perceiving) the truth.

A) from perceiving B) upon perceiving
C) to perceive D) No improvement
 
Answer & Explanation Answer: A) from perceiving

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: English
Exam Prep: Bank Exams

0 14519
Q:

Who is known as ' Little Corporal '

A) Adolf Hitler B) Napolean Bonaparte
C) William E. Gladstone D) Classical Music
 
Answer & Explanation Answer: B) Napolean Bonaparte

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Famous Personalities

53 14511
Q:

Select the synonym of

to reiterate

 

A) to hark B) to drawl
C) to halt D) to recur
 
Answer & Explanation Answer: D) to recur

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: English
Exam Prep: Bank Exams

0 14498