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.

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Q:

Rearrange the parts of the sentence in correct order.

 

P: This discipline is characterized by several concepts and approaches that are used by psychologists in understanding human behavior.
Q: The field of psychology can be described as a discipline that focuses on the study of mind and behavior.
R: Some of the most common psychological concepts that are used to modify or change an individual’s behavior include operant conditioning, positive and negative punishment, and positive and negative reinforcement.
S: Since psychology is a broad field, psychologists not only use these concepts and approaches but also conduct scientific research that enables them to understand
human behavior.

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

Explanation:
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Q:

Select the synonym of

genre

A) celebrity B) common man
C) category D) pleasant
 
Answer & Explanation Answer: C) category

Explanation:
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Q:

Following the same logic, crack this mathematical puzzle ?

 

A) 4 B) 2
C) 1 D) 3
 
Answer & Explanation Answer: C) 1

Explanation:

The answer here is 1.

 

Logic Followed in the given puzzle ::

 

The logic here is the number of circles in each 4 digit number mentioned.

8801 has 5

5261 has 1

and so on

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Q:

Among the components of the dermis are:

a. sweat glands

b. hair follicles

c. collagen fibers

d. sensory- nerve endings

e. arrestor pill muscles

A) a, b, d B) a, b, c, d, e
C) a, b, c, e D) a, c, d
 
Answer & Explanation Answer: B) a, b, c, d, e

Explanation:

The dermis is a layer of the skin of the integumentary system. The dermis lies deep to the superficial epidermis which is also the most superficial layer of the skin. The dermis lies superficial to the underlying hypodermis which is also referred to as subcutaneous tissue.

Among the components of the dermis are: sweat glands, hair follicles, collagen fibers, sensory- nerve endings and arrestor pill muscles.

 

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Q:

Which of the following features is the product of vulcanicity

A) Geosyncline B) Escarpment
C) Atoll D) Fold mountain
 
Answer & Explanation Answer: C) Atoll

Explanation:
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31 14607
Q:

The output of the code below is

       #include <stdio.h>
        void main()
        {
            int i = 0, k;
            if ( i == 0 )
                goto label;
                for ( k = 0;k < 3; k++ )
                {
                    printf( "hin" );
                    label: k = printf( "%03d", i );
                }
         }

A) 0 B) hi hi hi 0 0 0
C) 0 hi hi hi 0 0 0 D) 0 0 0
 
Answer & Explanation Answer: A) 0

Explanation:
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Q:

Which subatomic particle has a positive charge?

 

A) Proton B) Neutron
C) Electron D) Ion
 
Answer & Explanation Answer: A) Proton

Explanation:
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