Questions

Q:

During the motion of a projectile fired from the earth surface, _______

A) its kinetic energy remains constant B) its momentum remains constant
C) vertical component of its velocity remains constant D) horizontal component of its velocity remains constant
 
Answer & Explanation Answer: D) horizontal component of its velocity remains constant

Explanation:
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Filed Under: Physics
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Q:

The upper part of the heterosphere is composed almost completely of which gas?

A) Ozone B) Nitrogen
C) Oxygen D) Hydrogen
 
Answer & Explanation Answer: D) Hydrogen

Explanation:
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Filed Under: Chemistry
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Q:

In the following passage some of the words have been left out. Read the passage carefully and choose the correct answer for the given blank out of the four alternatives.


War and Peace, an epic historical novel by Leo Tolstoy, was_____ published as Voyna i mir in 1865-69. This ____study of early 19th century Russian society, noted for its _____of realistic detail and variety of psychological______is generally regarded as one of the world's greatest novels. War and Peace is_____concerned with the histories of five aristocratic families, the members of which are _____against the_____background of Russian social life during the war against Napoleon. The_____ of war, however, is____to the story of family existence which involves Tolstoy's optimistic belief in the life-asserting ______of human existence.

 

Variety of psychological _____ is generally regarded as one of the world's greatest novels.

A) criticism B) analysis
C) instances D) depth
 
Answer & Explanation Answer: B) analysis

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Filed Under: English
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Q:

Which of the following statements with regard to the speech of Mahatma Gandhi at the opening of the Banaras Hindu University are correct?

1.he charged the Indian elite with a lack of concern for the laboring poor.

2.He asserted that our salvation can come only through the farmers.

3.He highlighted the plight of the untouchables.

4.He promised to take up the cause of the mill owners of Ahmedabad.

Select the correct answer using the code given below.

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

Explanation:

Only   1   and   2   are   correct,   as Mahatma  Gandhi’s  speech  in  BHU on 4 February,1916 did not include plight  of  untouchables  and  there was no issue of the mill owners on Ahmedabad in 1916.

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Filed Under: Indian History
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Q:

Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. What is the ratio of the length of a rectangle to the side of a square?

I. The area of the square is 576 sq cm and the area of the rectangle is 600 sq cm.

II. The breadth of the rectangle is half the side of the square.

A) The data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question. B) The data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question.
C) The data in either Statement I alone are in Statement II alone are sufficient to answer the question. D) The data in both the Statements I and II are not sufficient to answer the question.
 
Answer & Explanation Answer:

Explanation:

From statement I, Area of square = 576 sq cm
Side of square = 24 cm
Area of rectangle = l × b
l × b = 600 sq cm
From statement II, Suppose the breadth of the
rectangle is x. Then side of the square = 2x
Combining both the information, we have
x =12 cm
Now, l × 12 = 600

l=60012=50 cm

Required ratio = 5024=2512=25:12

Both the statements together are sufficient.

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Q:

The colour of a thin film is due to

A) Scattering B) Dispersion
C) Diffraction D) Interference
 
Answer & Explanation Answer: D) Interference

Explanation:

In physics, interference is a phenomenon in which two waves superpose to form a resultant wave of greater, lower, or the same amplitude. The color bands in thin films are a result of wavelength dependent interference caused by the close spacing of the surfaces of the film.

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Filed Under: Physics
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Q:

The family is a social institution that is found in

A) every society B) high-income nations but not in most low-income nations
C) most but not all societies D) about half of human societies
 
Answer & Explanation Answer: A) every society

Explanation:
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Filed Under: General Awareness
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Q:

Which nitrogenous bases pair together?

A) adenine with thymine (in DNA) B) guanine with cytosine
C) Both A & B D) guanine with uraci
 
Answer & Explanation Answer: C) Both A & B

Explanation:
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