Iit Scholars 2

8/13/2019 Iit Scholars 2

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Time: 11/2hours Maximum marks: 90

[1] This test booklet consists of three subject groups containing questions on 7 subjects

as following:

1. Basic Science: Q. No. 91125

Physics

Chemistry

Biology

2. Social Science: Q. No. 126-160

History

Geography

Civics

3. Mathematics: Q. No. 161-180

[2]. Answer the questions on all the subjects.

[3]. Answer to each question is to be indicated by encircling the number of correct alternative in

the answer sheet from amongst the four alternative given below the question against the

corresponding question in the test booklet.


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NTSE 1 (CLASS - VIII)_08 - 2

91. An object is placed at the centre of curvature of a concave mirror. The distance between its

image and the pole is :

(A) equal to f (B) between f and 2f

(C) equal to 2f (D) greater than 2f

92. A ray of light is incident on a concave mirror. If it is parallel to the principal axis, the

reflected ray will :

(A) pass through the focus (B) pass through the centre of curvature

(C) pass through the pole (D) retrace its path

93. The wavelengths corresponding to violet, yellow and red light arev y r, and respectively

(A)v y r

> > (B)v y r

< <

(C)y v r

< < (D)y r v

< <

94. An ammeter is always connected in and a voltmeter in .. The suitable words, inorder, for the blanks are

(A) series; series (B) parallel; parallel

(C) parallel; series (D) series; parallel

95. The magnetic field lines due to a straight wire carrying a current are :

(A) straight (B) circular

(C) parabolic (D) elliptical

96. Electricity from the ocean can be generated based on utilizing

(A) kinetic energy of the waves but not stored thermal energy

(B) stored thermal energy but not kinetic energy of the waves

(C) kinetic energy of the waves as well as stored thermal energy(D) neither kinetic energy of the waves nor stored thermal energy

97. A body originally at rest is subjected to a uniform acceleration of 4 ms2

. The distance

travelled by it in 5th

second is

(A) 10 m (B) 15 m

(C) 18 m (D) 20 m

98. A body is released from the top of the tower H metre high. It takes t second to reach the

ground. Where is the body t/2 second after release ?

(A) At H/2 metre from ground (B) At H/4 metre from ground

(C) At 3H/4 metre from ground (D) At H/6 metre from ground

99. Same force acts on two different bodies of different masses 3 kg and 5 kg initially at rest. The

ratio of times required to acquire same final velocity is

(A) 3 : 5 (B) 5 : 3

(C) 25 : 9 (D) 9 : 25

100. It is easier to catch a tennis ball as compared to a cricket ball moving with the same velocity

because

(A) the tennis ball has less momentum than cricket ball

(B) the tennis ball is lighter than cricket ball


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(C) the tennis ball has higher potential energy than the cricket ball

(D) both the balls have the same kinetic energy

101. The potential energy of a long spring when stretched by 2 cm is U. If the spring is stretched

by 8 cm, the potential energy stored in it is

(A) 16 U (B) 8 U

(C) 4 U (D) U/4

102. The kinetic energy of a body becomes four times its original value. The new linear

momentum of the body will be

(A)1

times2

(B) 4 times

(C) 3 times (D) 2 times

103. Plaster of Paris is :

(A) (CaSO4)2 .H2O (B) CaSO4.2H2O(C) CaSO4.H2O (D) CaSO4

104. Which of the following is the hardest substance known ?

(A) Graphite (B) Carborundum

(C) Diamond (D) Coke

105. LPG mainly contains

(A) Methane (B) Methane & Ethane

(C) H2, Methane and Ethane (D) Butane and Isobutane

106. Which of the following is not a photochemical reaction ?

(A) Photosynthesis (B) Photography(C) Fading of colour from fabric (D) Synthesis of ammonia from N2and H2

107. Metallurgy is a process of

(A) Extracting metal from its mineral (B) Extracting metal from its ore

(C) Extracting pure metal from its ore (D) Extracting metal from its pure ore

108. Which of the following elements is not present in stainless steel ?

(A) Iron (B) Tungsten

(C) Chromium (D) Nickel

109. The windscreen of cars, aeroplanes etc, is made up of

(A) Hard glass (B) Safety glass(C) Lead glass (D) Soda glass

110. If steel is heated bright red hot and is then cooled slowly, the process is called

(A) Quenching (B) Annealing

(C) Tempering (D) Smelting

111. The gas used in the welding and cutting of metals is

(A) Ethane (B) Ethene

(C) Propene (D) Ethyne


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112. Formalin is a 40 per cent solution

(A) Methanol (B) Methanal

(C) Methanoic acid (D) None of these

113. If fertilizers are added to fresh water

(A) Plants will die (B) Overall animal population will increase

(C) Eutrophication will occur (D) Fish population will decrease

114. The number of neutrons present in 2311

Na+ are

(A) 10 (B) 11

(C) 12 (D) 13

115. Rearing of bees is

(A) horticulture (B) Apiary

(C) Apiculture (D) Poultry

116. Animals spending summer in dormant condition is referred to

(A) Aestivation (B) Carmouflage

(C) Hibernation (D) Minicry

117. Binomial nomenclature was introduced by

(A) De varies (B) Carolous Linnaeus

(C) Husley (D) John Ray

118. The one which does not loose its identity even after crystallization is

(A) Virus (B) Bacterium

(C) Microbe (D) Protistian

119. Nitrogen fixation is performed by

(A) Green algae and fungi (B) Ferns and cycads

(C) Legumes and cereals (D) Blue green algae & bacteria

120. Kelps are

(A) fresh water algae (B) Marine algae

(C) Terrestrial plants (D) Amphibious plants

121. Lady bird beetle is

(A) Bird (B) Insect

(C) Worm (D) Reptile

122. An outer overing membrane is absent over

(A) Nucleolus (B) Lysosome

(C) Mitochondrion (D) Plastid

123. The gland which is exocrine and endocrine is

(A) Adrenal (B) Pituitary

(C) Liver (D) Pancreas


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124. Gestation period in human is

(A) 10 weeks (B) 28 weeks

(C) 82 weeks (D) 38 weeks

125. In xerophytes, photosynthesis often occurs through

(A) Root (B) Modified stem

(C) Stomata (D) Scaly leaves

126. _______introduced the Permanent Settlement of Bengal.

(A) Lord Cornwallis (B) Lord Wellesley

(C) Lord Warren Hastings (D) Load Dalhousie

127. Which class benefited most under the revenue system of the British?

(A) The peasants (B) The merchants

(C) The money lenders in the village (D) Revenue collectors

128. The Revolt of 1857 began at Meerut on

(A) April 10 (B) April 9

(C) May 10 (D) March 29

129. ______ was not an important leader of the Revolt of 1857.

(A) Kunwar Singh (B) Wajid Ali Shah

(C) Nana Saheb (D) Bakht Khan

130. Vande Mataram was written by

(A) Mohd. Iqbal (B) Bankim Chandra Chatterjee

(C) B G Tilak (D) Rabindranath Tagore

131. The name of the English News paper which was edited by B G Tilak was

(A) Mahratta (B) The Bombay Chronicle

(C) Young India (D) Kesari

132. _______ was the founder of the Aligarh Muslim University

(A) Badruddin Tyabji (B) Syed Ahmed Khan

(C) Maulana Abul Kalam Azad (D) Maulana Mohammad Ali

133. In which year did Tilak form the Home Rule League ?

(A) 1914 (B) 1915

(C) 1916 (D) 1918

134. The Indian National Movement up to 1905, was dominated by leaders who have been

described as

(A) parliamentarians (B) constitutionalists

(C) extremists (D) moderate nationalists

135. Akbars religious policy was characterized by ____

(A) Tolerance towards all religions

(B) An indifference to religion

(C) An illiberal attitude towards religious communities


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(D) Belief in secularism

136. Which one of the following Sikh Gurus organized the Sikh as soldiers to fight against the

Mughal Army?

(A) Guru Nanak (B) Guru Arjun Dev

(C) Guru Angada (D) Guru Govind Singh

137. Who among the following became a Buddhist?(A) Manander (B) Herodotus

(C) Antiochus (D) Megasthenes

138. The earth takes what time to rotate through 10of longitude ?

(A) 2 minutes (B) 4 minutes

(C) 6 minutes (D) 1 minutes

139. Name the island group of India lying to its southeast.(a) Lakshdweep (B) Andaman and Nicobar

(C) Rameshwaram (D) Mali

140. _______originates near the Kailash Mansarovar region.

(A) The Indus (B) The Satluj

(C) The Tsangpo (D) All the above

141. Where is the Pir Panjal Range located ?

(A) Himachal Pradesh (B) Uttranchal

(C) Arunachal Pradesh (D) Jammu and Kashmir

142. Monsoon are(A) seasonal winds (B) permanent winds

(C) temporary winds (D) local winds

143. India receives most rains from

(A) the northeast monsoon (B) the retreating monsoon

(C) tropical cyclones (D) the southwest monsoon

144. Tungabhadra and Bhima are the tributaries of river

(A) Krishna (B) Kaveri

(C) Mahanadi (D) Narmada

145. Which river drains into the Arabian sea ?(A) Kaveri (B) Krishna

(C) Godavari (D) Narmada

146. Which of the following soils is most suitable for the cultivation of cotton in India?

(A) Red Soil (B) Laterite Soil

(C) Alluvial Soil (D) Regur Soil

147. The maximum risk to air travel is from ____

(A) Clouds (B) Rainfall

(C) Fogs (D) Strong winds


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148. Which one of the following countries is the largest producer of rice in the world?

(A) China (B) Japan

(C) Philippines (D) Bangladesh

149. The President of the Constituent Assembly was

(A) Dr B R Ambedkar (B) Dr Rajendera Prasad

(C) Jawaharalal Nehru (D) Sardar Vallabhabhai Patel

150. From which of the following Constitutions have we borrowed the idea of the Preamble?

(A) Constitution of USA (B) Constitution of Canada

(C) Constitution of UK (D) Constitution of France

151. Which of the following is not a characteristic of a federal constitution ?

(A) Supremacy of the Constitution

(B) Distribution of power among bodies with limited and coordinate authority

(C) Authority of the federal Constitution to act as interpreter of the Constitution(D) Single citizenship

152. The Speaker

(A) votes on every bill (B) votes on Money Bills only

(C) votes only to help the party in power (D) has a casting vote in case of a tie

153. The Directive Principles were incorporated in the Constitution with a view to

(A) ensure a democratic government in the country

(B) provide a strong Central Government

(C) establish welfare state

(D) raise the living standard of the weaker sections of society.

154. A political party, in order to be recognized as the main opposition party in the Indian

Parliament, should have at least

(A) one-fourth seats (B) one-third seats

(C) 4% of the total valid votes (D) No binding condition

155. Representative democracy or indirect democracy is one in which

(A) the people make their own laws

(B) the people pass their own budgets

(C) the people elect representatives and rule through them

(D) all of the above are correct

156. From the Constitution of Canada we have borrowed the theme of our(A) Fundamental Rights (B) Federation

(C) Directive Principles of State Policy (D) Supreme Court

157. Every year the Human Rights Day is celebrated on ____

(A) October 2 (B) October 24

(C) November 19 (D) December 10


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158. Which of the following is not included in the executive wing of the government?

(A) The Prime Minister (B) The President or the King

(C) The Ministers (D) The Judges of the Courts

159. The first General Elections of Lok Sabha were held in the year ____

(A) 1947 (B) 1951

(C) 1952 (D) 1957

160. Which of the following latitudes is a great circle?

(A) Equator (B)1

66 N2

(C) 20S (D)1

23 S2

161. If x + y = 0.90 and x y = 0.18 , then x y is

(A) 12

(B) 15

(C) 1.2 (D) 1.5

162. If1 1

a , b3 2 2 3 2 2

= = +

then the value of a2+ b

2is

(A) 34 (B) 35

(C) 36 (D) 37

163. If x 7 4 3,= + then the value of1

xx

+ is

(A) 8 (B) 6(C) 5 (D) 4

164. The simplest rationalizing factor of 4 48 is

(A) 4 9 (B) 4 27

(C) 3 9 (D) none of these

165. If x + y = a and xy = b then the value of3 3

1 1

x y+ is

(A)

3

3

a 3ab

b

(B)

3

3

a 3a

b

(C)3

a 3

b

(D)

3

2

a 3

b

166. If1

x2

= then the value of1

x1

11

1x

+

+

+

is equal to


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(A)5

4 (B)

4

5

(C)3

4 (D) none of these

167. 3x y

= 27 and 3x + y

= 243, then x is equal to

(A) 0 (B) 4

(C) 2 (D) 6

168. If2 / 2 2

3 3

9 (3 )(3 ) 27 1,

3 (2) 27

n n n

m

= then m n is

(A) 1 (B)1

2

(C)1

3 (D) 0

169. The value of

2 2 2 2 2 2

x y y z z xy x z y x z

1 1 1 1 1 1

x y y z z x

is

(A) x2y

2z

2 (B) x

2y

2z

2

(C) 1 (D) xyz

170. A gets 10% more than B. Then B gets

(A) 10% more than A (B) 10% less than A

(C)1

9 %11

more than A (D) none of these

171. Successive discounts of a% and b% are equivalent to a single discount of

(A) (a + b)% (B)a b

%2

+

(C)ab

a b %100

+

(D) none of these

172. If x =2

1,b b then the value of b in terms of x is

(A)2 1

2x x (B)

2 1x x

x+ +

(C) 2 12

x x x + (D)2

12

xx+

173. If2

2

4,

4

a b xx then

b a x x

= +

+

is

(A)2

a b

a

+ (B)

2

a b

a

(C) a2+ b

2 (D) a

2- b

2


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174. Find the value of x in the given figure

(A) 30

(B) 35

(C) 40

(D) 45

30

x

175. In this figure, FED is a straight line, D is equal to(A) 30

(B) 60

(C) 40

(D) 50E

A

B

C

D

F

70 80

176. If the perimeter of a square is (4y + 12) m, then the length of its diagonal is

(A)y 3

m2

+ (B) 2(y 3)m+

(C) 2(4y 12)m+ (D)4y 12

m

2

+

177. If the surface area of a sphere is 324 cm2then its volume is

(A) 950 cm3 (B) 972 cm

3

(C) 975 cm3 (D) 980 cm

3

178. The area of a sector of perimeter 45 cm and radius 6 cm is

(A) 44 cm2 (B) 66 cm

2

(C) 88 cm2 (D) 99 cm

2

179. The area of the shaded portion in the figure is

(A) 7.5 sq. units

(B) 6.5 sq. units

(C) 5.5 sq. units

(D) 4.5 sq. u nits 1 5

180. The bricks of dimensions 25 cm 12.5 cm 7.5 cm required to build a wall 5m 3m 20m

are

(A) 128000 (B) 128500

(C) 129000 (D) 129500

Iit Scholars 2

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