Part – B General knowledge (English) (NDA/NA SOLVED PAPER 2019 (I) (51 to 100)

Total Questions: 50

41. Which of the following is/are environmental effects of Rotation of the Earth?

1. Daily or diurnal rhythm in day-light and air temperature
2. Flow path of both air and water are turned consistently in a sideward direction.
3. The movement of the tides
Select the correct answer using the codes given below:

Correct Answer: (c) 1, 2 and 3
Solution:

Statement 1, 2 and 3 all are correct. The rotation of the earth causes day and night. This results in the diurnal changes in day-light and air temperature. So, statement 1 is correct.
Earth’s rotation results in the Coriolis effect. This deflects winds and streams of water to the right in Northern Hemisphere and to the left in Southern Hemisphere. So, statement 2 is correct.
Tides are caused by the gravitational attractive forces of the moon and the sun as well as the centrifugal force due to the Earth’s rotation. So, statement 3 is also correct.

42. Who among the following historians have described the Quit India Movement as a ‘spontaneous revolution’?

Correct Answer: (c) FG Hutchins
Solution:

FG Hutchins described the Quit India Movement as a ‘spontaneous revolution’. Quit India Movement, 1942 was an important event of the Indian freedom struggle.

43. Questions:- (93 to 95) The following questions items consist of two statements, statement I and statement II. Examine these two statements carefully and select the correct answer using the codes given below:

Codes
(a) Both the statements are individually true and statement II is the correct explanation of statement I.
(b) Both the statements are individually true and statement II is not the correct explanation of statement I.
(c) Statement I is true, but statement II is false.
(d) Statement I is false, but statement II is true.

Statement I
 Abul Fazl shaped, represented and articulated the ideas associated with the reign of Akbar.
Statement II
The qualities of Abul Fazl impressed Akbar who found the former suitable as an adviser and spokesperson for his policies.

Correct Answer: (a)
Solution:

Abul Fazl shaped, represented and articulated the ideas associated with the reign of Akbar because the qualities of Abul Fazl impressed Akbar, who found the former suitable as an adviser and spokesperson for his policies.
So, Both the given statements are individually true and statement II is the correct explanation of statement I.

44. Examine these two statements carefully and select the correct answer using the codes given below.

Codes
(a) Both the statements are individually true and statement II is the correct explanation of statement I.
(b) Both the statements are individually true and statement II is not the correct explanation of statement I.
(c) Statement I is true, but statement II is false.
(d) Statement I is false, but statement II is true.

Statement I
The Kisan Manifesto adopted by the All India Kisan Sabha in August, 1936 contained radical demands.
Statement II
The All India Kisan Sabha was a part of the Congress and maintained close relationship with the Provincial Congress Committees.

Correct Answer: (d)
Solution:

The kisan manifesto released in August 1936, demanded abolition of the zamindari system and cancellation of rural debts.
All India Kisan Sabha was separate entity. It was founded at Lucknow in 1936 with Swami Sahajanand as its first President and NG Ranga as its General Secretary. So, statement I is false, but statement II is true. Hence, option (d) is correct.

45. Examine these two statements carefully and select the correct answer using the codes given below.

Codes
(a) Both the statements are individually true and statement II is the correct explanation of statement I.
(b) Both the statements are individually true and statement II is not the correct explanation of statement I.
(c) Statement I is true, but statement II is false.
(d) Statement I is false, but statement II is true.

Statement I
The British ruled India through a modern bureaucracy headed by the Indian Civil Service, whose members were recruited through merit based on open competition.
Statement II
The Indian Civil Service was based on the whole hearted participation of Indians.

Correct Answer: (c)
Solution:

The British ruled India through a modern bureaucracy headed by the Indian Civil Service, whose members were recruited through merit based on open competition. Hence, statement (1) is correct.
The Indian Civil Services was not based on the whole hearted participation of Indians. Hence, statement (2) is not currect. So, the statement I is true. But, the statement II is not true. Thus, option(c) is correct here.

46. Two metallic wires A and B are made using copper. The radius of wire A is r while its length is l. A DC voltage V is applied across the wire A, causing power dissipation P. The radius of wire B is 2r and its length is 2l and the same DC voltage V is applied across it causing power dissipation P₁. Which one of the following is the correct relationship between P and P₁?

Correct Answer: (b) P = P₁/2
Solution:

47. Consider the following statements about a solenoid:

1. The magnetic field strength in a solenoid depends upon the number of turns per unit length in the solenoid.
2. The magnetic field strength in a solenoid depends upon the current flowing in the wire of the solenoid.
3. The magnetic field strength in a solenoid depends upon the diameter of the solenoid.
Which of the statements given above are correct?

Correct Answer: (d) 1 and 2
Solution:

Magnetic field strength in a solenoid is given by
B = µ₀ ni
where, µ₀ = permeability of free space,
n = number of turns per unit length and
i = current flowing through solenoid.
So, it is clear that magnetic field strength B in a solenoid depends on n and i only, it does not depends on diameter of solenoid.
Therefore, statements 1 and 2 are correct.

48. Light year is a unit of measurement of:

Correct Answer: (a) very large distances
Solution:

Light year is a unit of measurement of very large distances. It is a distance travelled by light in vacuum in one year.
1 light year = 9.46 × 10¹⁵ m

49. The focal length of the objective lens of a telescope is 50 cm. If the magnification of the telescope is 25, then the focal length of the eyepiece is:

Correct Answer: (c) 2 cm
Solution:

50. Which one of the following force is non-central and non-conservative?

Correct Answer: (a) Frictional force
Solution:

A force on body which does not always act towards a fixed point, is called non-central force.
The forces that do not store energy are called non-conservative forces.
Work done by non-conservative forces depends on the path of the body moving from one point to another point.
Therefore, frictional force is a non-central and non-conservative force.